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Finding the Fourth Proportional to 83,352.74, 124,902.81 and 55,171.82

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Solution

The fourth proportional to 83,352.74, 124,902.81 and 55,171.82 is: 82,674.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,352.74 : 124,902.81 = 55,171.82 : x
  2. Step 2: Convert to fraction form
    83,352.74/124,902.81 = 55,171.82/x
  3. Step 3: Cross multiply
    83,352.74x = 124,902.81 × 55,171.82
  4. Step 4: Simplify right side
    83,352.74x = 6,891,114,726.30
  5. Step 5: Solve for x
    x = 6,891,114,726.30/83,352.74
  6. Step 6: Final answer
    x = 82,674.13

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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.