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Finding the Fourth Proportional to 115,381.92, 159,227.28 and 62,389.92

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Solution

The fourth proportional to 115,381.92, 159,227.28 and 62,389.92 is: 86,098.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,381.92 : 159,227.28 = 62,389.92 : x
  2. Step 2: Convert to fraction form
    115,381.92/159,227.28 = 62,389.92/x
  3. Step 3: Cross multiply
    115,381.92x = 159,227.28 × 62,389.92
  4. Step 4: Simplify right side
    115,381.92x = 9,934,177,261.02
  5. Step 5: Solve for x
    x = 9,934,177,261.02/115,381.92
  6. Step 6: Final answer
    x = 86,098.21

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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.