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Finding the Fourth Proportional to 91,061.28, 125,593.28 and 59,240.32

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Solution

The fourth proportional to 91,061.28, 125,593.28 and 59,240.32 is: 81,705.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,061.28 : 125,593.28 = 59,240.32 : x
  2. Step 2: Convert to fraction form
    91,061.28/125,593.28 = 59,240.32/x
  3. Step 3: Cross multiply
    91,061.28x = 125,593.28 × 59,240.32
  4. Step 4: Simplify right side
    91,061.28x = 7,440,186,097.05
  5. Step 5: Solve for x
    x = 7,440,186,097.05/91,061.28
  6. Step 6: Final answer
    x = 81,705.27

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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.