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Finding the Fourth Proportional to 144,841.20, 217,261.80 and 109,849.20

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Solution

The fourth proportional to 144,841.20, 217,261.80 and 109,849.20 is: 164,773.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,841.20 : 217,261.80 = 109,849.20 : x
  2. Step 2: Convert to fraction form
    144,841.20/217,261.80 = 109,849.20/x
  3. Step 3: Cross multiply
    144,841.20x = 217,261.80 × 109,849.20
  4. Step 4: Simplify right side
    144,841.20x = 23,866,034,920.56
  5. Step 5: Solve for x
    x = 23,866,034,920.56/144,841.20
  6. Step 6: Final answer
    x = 164,773.80

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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.