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Finding the Fourth Proportional to 84,641.73, 126,713.37 and 62,553.57

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Solution

The fourth proportional to 84,641.73, 126,713.37 and 62,553.57 is: 93,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,641.73 : 126,713.37 = 62,553.57 : x
  2. Step 2: Convert to fraction form
    84,641.73/126,713.37 = 62,553.57/x
  3. Step 3: Cross multiply
    84,641.73x = 126,713.37 × 62,553.57
  4. Step 4: Simplify right side
    84,641.73x = 7,926,373,660.23
  5. Step 5: Solve for x
    x = 7,926,373,660.23/84,641.73
  6. Step 6: Final answer
    x = 93,646.17

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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.