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Finding the Fourth Proportional to 453,517.76, 680,374.92 and 137,966.36

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Solution

The fourth proportional to 453,517.76, 680,374.92 and 137,966.36 is: 206,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,517.76 : 680,374.92 = 137,966.36 : x
  2. Step 2: Convert to fraction form
    453,517.76/680,374.92 = 137,966.36/x
  3. Step 3: Cross multiply
    453,517.76x = 680,374.92 × 137,966.36
  4. Step 4: Simplify right side
    453,517.76x = 93,868,851,147.69
  5. Step 5: Solve for x
    x = 93,868,851,147.69/453,517.76
  6. Step 6: Final answer
    x = 206,979.44

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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.