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Finding the Fourth Proportional to 83,254.80, 124,517.70 and 74,433.90

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Solution

The fourth proportional to 83,254.80, 124,517.70 and 74,433.90 is: 111,324.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,254.80 : 124,517.70 = 74,433.90 : x
  2. Step 2: Convert to fraction form
    83,254.80/124,517.70 = 74,433.90/x
  3. Step 3: Cross multiply
    83,254.80x = 124,517.70 × 74,433.90
  4. Step 4: Simplify right side
    83,254.80x = 9,268,338,030.03
  5. Step 5: Solve for x
    x = 9,268,338,030.03/83,254.80
  6. Step 6: Final answer
    x = 111,324.97

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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.