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Finding the Fourth Proportional to 137,331.90, 205,934.40 and 62,449.02

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Solution

The fourth proportional to 137,331.90, 205,934.40 and 62,449.02 is: 93,644.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,331.90 : 205,934.40 = 62,449.02 : x
  2. Step 2: Convert to fraction form
    137,331.90/205,934.40 = 62,449.02/x
  3. Step 3: Cross multiply
    137,331.90x = 205,934.40 × 62,449.02
  4. Step 4: Simplify right side
    137,331.90x = 12,860,401,464.29
  5. Step 5: Solve for x
    x = 12,860,401,464.29/137,331.90
  6. Step 6: Final answer
    x = 93,644.68

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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.