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Finding the Fourth Proportional to 83,287.91, 124,731.67 and 47,641.16

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Solution

The fourth proportional to 83,287.91, 124,731.67 and 47,641.16 is: 71,347.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,287.91 : 124,731.67 = 47,641.16 : x
  2. Step 2: Convert to fraction form
    83,287.91/124,731.67 = 47,641.16/x
  3. Step 3: Cross multiply
    83,287.91x = 124,731.67 × 47,641.16
  4. Step 4: Simplify right side
    83,287.91x = 5,942,361,447.54
  5. Step 5: Solve for x
    x = 5,942,361,447.54/83,287.91
  6. Step 6: Final answer
    x = 71,347.23

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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.