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Finding the Fourth Proportional to 124,377.80, 171,643.86 and 67,789.17

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Solution

The fourth proportional to 124,377.80, 171,643.86 and 67,789.17 is: 93,550.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,377.80 : 171,643.86 = 67,789.17 : x
  2. Step 2: Convert to fraction form
    124,377.80/171,643.86 = 67,789.17/x
  3. Step 3: Cross multiply
    124,377.80x = 171,643.86 × 67,789.17
  4. Step 4: Simplify right side
    124,377.80x = 11,635,594,805.00
  5. Step 5: Solve for x
    x = 11,635,594,805.00/124,377.80
  6. Step 6: Final answer
    x = 93,550.42

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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.