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Finding the Fourth Proportional to 145,764.76, 201,151.72 and 82,098.76

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Solution

The fourth proportional to 145,764.76, 201,151.72 and 82,098.76 is: 113,294.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,764.76 : 201,151.72 = 82,098.76 : x
  2. Step 2: Convert to fraction form
    145,764.76/201,151.72 = 82,098.76/x
  3. Step 3: Cross multiply
    145,764.76x = 201,151.72 × 82,098.76
  4. Step 4: Simplify right side
    145,764.76x = 16,514,306,783.87
  5. Step 5: Solve for x
    x = 16,514,306,783.87/145,764.76
  6. Step 6: Final answer
    x = 113,294.23

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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.