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Finding the Fourth Proportional to 143,862.60, 215,819.84 and 44,020.92

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Solution

The fourth proportional to 143,862.60, 215,819.84 and 44,020.92 is: 66,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,862.60 : 215,819.84 = 44,020.92 : x
  2. Step 2: Convert to fraction form
    143,862.60/215,819.84 = 44,020.92/x
  3. Step 3: Cross multiply
    143,862.60x = 215,819.84 × 44,020.92
  4. Step 4: Simplify right side
    143,862.60x = 9,500,587,911.05
  5. Step 5: Solve for x
    x = 9,500,587,911.05/143,862.60
  6. Step 6: Final answer
    x = 66,039.32

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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.