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Finding the Fourth Proportional to 137,726.70, 206,590.05 and 44,241.90

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Solution

The fourth proportional to 137,726.70, 206,590.05 and 44,241.90 is: 66,362.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,726.70 : 206,590.05 = 44,241.90 : x
  2. Step 2: Convert to fraction form
    137,726.70/206,590.05 = 44,241.90/x
  3. Step 3: Cross multiply
    137,726.70x = 206,590.05 × 44,241.90
  4. Step 4: Simplify right side
    137,726.70x = 9,139,936,333.10
  5. Step 5: Solve for x
    x = 9,139,936,333.10/137,726.70
  6. Step 6: Final answer
    x = 66,362.85

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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.