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Finding the Fourth Proportional to 296,136.76, 408,678.58 and 162,000.76

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Solution

The fourth proportional to 296,136.76, 408,678.58 and 162,000.76 is: 223,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,136.76 : 408,678.58 = 162,000.76 : x
  2. Step 2: Convert to fraction form
    296,136.76/408,678.58 = 162,000.76/x
  3. Step 3: Cross multiply
    296,136.76x = 408,678.58 × 162,000.76
  4. Step 4: Simplify right side
    296,136.76x = 66,206,240,555.72
  5. Step 5: Solve for x
    x = 66,206,240,555.72/296,136.76
  6. Step 6: Final answer
    x = 223,566.44

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Find fourth proportional to 148,068.38, 204,339.29 and 81,000.38
Half scale
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Double scale
Find fourth proportional to 296,137.76, 408,679.96 and 162,001.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.