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Finding the Fourth Proportional to 137,422.60, 206,133.90 and 62,578.60

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Solution

The fourth proportional to 137,422.60, 206,133.90 and 62,578.60 is: 93,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,422.60 : 206,133.90 = 62,578.60 : x
  2. Step 2: Convert to fraction form
    137,422.60/206,133.90 = 62,578.60/x
  3. Step 3: Cross multiply
    137,422.60x = 206,133.90 × 62,578.60
  4. Step 4: Simplify right side
    137,422.60x = 12,899,570,874.54
  5. Step 5: Solve for x
    x = 12,899,570,874.54/137,422.60
  6. Step 6: Final answer
    x = 93,867.90

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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.