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Finding the Fourth Proportional to 143,937.54, 215,909.01 and 49,189.41

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Solution

The fourth proportional to 143,937.54, 215,909.01 and 49,189.41 is: 73,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,937.54 : 215,909.01 = 49,189.41 : x
  2. Step 2: Convert to fraction form
    143,937.54/215,909.01 = 49,189.41/x
  3. Step 3: Cross multiply
    143,937.54x = 215,909.01 × 49,189.41
  4. Step 4: Simplify right side
    143,937.54x = 10,620,436,815.58
  5. Step 5: Solve for x
    x = 10,620,436,815.58/143,937.54
  6. Step 6: Final answer
    x = 73,785.04

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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.