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Finding the Fourth Proportional to 75,275.52, 103,885.14 and 43,446.60

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Solution

The fourth proportional to 75,275.52, 103,885.14 and 43,446.60 is: 59,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,275.52 : 103,885.14 = 43,446.60 : x
  2. Step 2: Convert to fraction form
    75,275.52/103,885.14 = 43,446.60/x
  3. Step 3: Cross multiply
    75,275.52x = 103,885.14 × 43,446.60
  4. Step 4: Simplify right side
    75,275.52x = 4,513,456,123.52
  5. Step 5: Solve for x
    x = 4,513,456,123.52/75,275.52
  6. Step 6: Final answer
    x = 59,959.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.