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Finding the Fourth Proportional to 83,360.53, 124,772.31 and 54,920.96

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Solution

The fourth proportional to 83,360.53, 124,772.31 and 54,920.96 is: 82,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,360.53 : 124,772.31 = 54,920.96 : x
  2. Step 2: Convert to fraction form
    83,360.53/124,772.31 = 54,920.96/x
  3. Step 3: Cross multiply
    83,360.53x = 124,772.31 × 54,920.96
  4. Step 4: Simplify right side
    83,360.53x = 6,852,615,046.62
  5. Step 5: Solve for x
    x = 6,852,615,046.62/83,360.53
  6. Step 6: Final answer
    x = 82,204.55

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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.