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Finding the Fourth Proportional to 83,117.76, 124,584.30 and 63,331.08

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Solution

The fourth proportional to 83,117.76, 124,584.30 and 63,331.08 is: 94,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,117.76 : 124,584.30 = 63,331.08 : x
  2. Step 2: Convert to fraction form
    83,117.76/124,584.30 = 63,331.08/x
  3. Step 3: Cross multiply
    83,117.76x = 124,584.30 × 63,331.08
  4. Step 4: Simplify right side
    83,117.76x = 7,890,058,270.04
  5. Step 5: Solve for x
    x = 7,890,058,270.04/83,117.76
  6. Step 6: Final answer
    x = 94,926.26

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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.