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Finding the Fourth Proportional to 63,149.90, 87,147.59 and 34,855.61

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Solution

The fourth proportional to 63,149.90, 87,147.59 and 34,855.61 is: 48,101.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,149.90 : 87,147.59 = 34,855.61 : x
  2. Step 2: Convert to fraction form
    63,149.90/87,147.59 = 34,855.61/x
  3. Step 3: Cross multiply
    63,149.90x = 87,147.59 × 34,855.61
  4. Step 4: Simplify right side
    63,149.90x = 3,037,582,409.48
  5. Step 5: Solve for x
    x = 3,037,582,409.48/63,149.90
  6. Step 6: Final answer
    x = 48,101.14

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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.