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Finding the Fourth Proportional to 83,043.91, 124,602.47 and 43,591.95

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Solution

The fourth proportional to 83,043.91, 124,602.47 and 43,591.95 is: 65,407.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,043.91 : 124,602.47 = 43,591.95 : x
  2. Step 2: Convert to fraction form
    83,043.91/124,602.47 = 43,591.95/x
  3. Step 3: Cross multiply
    83,043.91x = 124,602.47 × 43,591.95
  4. Step 4: Simplify right side
    83,043.91x = 5,431,664,642.12
  5. Step 5: Solve for x
    x = 5,431,664,642.12/83,043.91
  6. Step 6: Final answer
    x = 65,407.14

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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.