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Finding the Fourth Proportional to 171,201.60, 256,663.13 and 71,436.11

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Solution

The fourth proportional to 171,201.60, 256,663.13 and 71,436.11 is: 107,096.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,201.60 : 256,663.13 = 71,436.11 : x
  2. Step 2: Convert to fraction form
    171,201.60/256,663.13 = 71,436.11/x
  3. Step 3: Cross multiply
    171,201.60x = 256,663.13 × 71,436.11
  4. Step 4: Simplify right side
    171,201.60x = 18,335,013,947.13
  5. Step 5: Solve for x
    x = 18,335,013,947.13/171,201.60
  6. Step 6: Final answer
    x = 107,096.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.