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Finding the Fourth Proportional to 295,691.80, 408,045.98 and 161,555.80

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Solution

The fourth proportional to 295,691.80, 408,045.98 and 161,555.80 is: 222,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,691.80 : 408,045.98 = 161,555.80 : x
  2. Step 2: Convert to fraction form
    295,691.80/408,045.98 = 161,555.80/x
  3. Step 3: Cross multiply
    295,691.80x = 408,045.98 × 161,555.80
  4. Step 4: Simplify right side
    295,691.80x = 65,922,194,735.68
  5. Step 5: Solve for x
    x = 65,922,194,735.68/295,691.80
  6. Step 6: Final answer
    x = 222,942.25

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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.