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Finding the Fourth Proportional to 452,891.60, 679,293.68 and 137,351.24

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Solution

The fourth proportional to 452,891.60, 679,293.68 and 137,351.24 is: 206,013.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,891.60 : 679,293.68 = 137,351.24 : x
  2. Step 2: Convert to fraction form
    452,891.60/679,293.68 = 137,351.24/x
  3. Step 3: Cross multiply
    452,891.60x = 679,293.68 × 137,351.24
  4. Step 4: Simplify right side
    452,891.60x = 93,301,829,272.16
  5. Step 5: Solve for x
    x = 93,301,829,272.16/452,891.60
  6. Step 6: Final answer
    x = 206,013.60

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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.