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Finding the Fourth Proportional to 63,129.87, 87,119.19 and 34,835.58

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Solution

The fourth proportional to 63,129.87, 87,119.19 and 34,835.58 is: 48,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,129.87 : 87,119.19 = 34,835.58 : x
  2. Step 2: Convert to fraction form
    63,129.87/87,119.19 = 34,835.58/x
  3. Step 3: Cross multiply
    63,129.87x = 87,119.19 × 34,835.58
  4. Step 4: Simplify right side
    63,129.87x = 3,034,847,512.78
  5. Step 5: Solve for x
    x = 3,034,847,512.78/63,129.87
  6. Step 6: Final answer
    x = 48,073.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.