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Finding the Fourth Proportional to 83,115.56, 124,655.52 and 23,940.20

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Solution

The fourth proportional to 83,115.56, 124,655.52 and 23,940.20 is: 35,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,115.56 : 124,655.52 = 23,940.20 : x
  2. Step 2: Convert to fraction form
    83,115.56/124,655.52 = 23,940.20/x
  3. Step 3: Cross multiply
    83,115.56x = 124,655.52 × 23,940.20
  4. Step 4: Simplify right side
    83,115.56x = 2,984,278,079.90
  5. Step 5: Solve for x
    x = 2,984,278,079.90/83,115.56
  6. Step 6: Final answer
    x = 35,905.17

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1.5x scale

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.