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Finding the Fourth Proportional to 72,463.92, 108,535.28 and 55,700.56

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Solution

The fourth proportional to 72,463.92, 108,535.28 and 55,700.56 is: 83,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,463.92 : 108,535.28 = 55,700.56 : x
  2. Step 2: Convert to fraction form
    72,463.92/108,535.28 = 55,700.56/x
  3. Step 3: Cross multiply
    72,463.92x = 108,535.28 × 55,700.56
  4. Step 4: Simplify right side
    72,463.92x = 6,045,475,875.76
  5. Step 5: Solve for x
    x = 6,045,475,875.76/72,463.92
  6. Step 6: Final answer
    x = 83,427.39

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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.