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Finding the Fourth Proportional to 83,972.66, 125,344.62 and 74,008.49

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Solution

The fourth proportional to 83,972.66, 125,344.62 and 74,008.49 is: 110,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,972.66 : 125,344.62 = 74,008.49 : x
  2. Step 2: Convert to fraction form
    83,972.66/125,344.62 = 74,008.49/x
  3. Step 3: Cross multiply
    83,972.66x = 125,344.62 × 74,008.49
  4. Step 4: Simplify right side
    83,972.66x = 9,276,565,429.10
  5. Step 5: Solve for x
    x = 9,276,565,429.10/83,972.66
  6. Step 6: Final answer
    x = 110,471.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.