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Finding the Fourth Proportional to 137,630.61, 206,435.88 and 61,752.69

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Solution

The fourth proportional to 137,630.61, 206,435.88 and 61,752.69 is: 92,624.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,630.61 : 206,435.88 = 61,752.69 : x
  2. Step 2: Convert to fraction form
    137,630.61/206,435.88 = 61,752.69/x
  3. Step 3: Cross multiply
    137,630.61x = 206,435.88 × 61,752.69
  4. Step 4: Simplify right side
    137,630.61x = 12,747,970,902.52
  5. Step 5: Solve for x
    x = 12,747,970,902.52/137,630.61
  6. Step 6: Final answer
    x = 92,624.53

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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.