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Finding the Fourth Proportional to 91,732.01, 126,472.95 and 59,409.52

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Solution

The fourth proportional to 91,732.01, 126,472.95 and 59,409.52 is: 81,909.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,732.01 : 126,472.95 = 59,409.52 : x
  2. Step 2: Convert to fraction form
    91,732.01/126,472.95 = 59,409.52/x
  3. Step 3: Cross multiply
    91,732.01x = 126,472.95 × 59,409.52
  4. Step 4: Simplify right side
    91,732.01x = 7,513,696,936.30
  5. Step 5: Solve for x
    x = 7,513,696,936.30/91,732.01
  6. Step 6: Final answer
    x = 81,909.22

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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.