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Finding the Fourth Proportional to 63,170.13, 87,174.87 and 34,875.82

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Solution

The fourth proportional to 63,170.13, 87,174.87 and 34,875.82 is: 48,128.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,170.13 : 87,174.87 = 34,875.82 : x
  2. Step 2: Convert to fraction form
    63,170.13/87,174.87 = 34,875.82/x
  3. Step 3: Cross multiply
    63,170.13x = 87,174.87 × 34,875.82
  4. Step 4: Simplify right side
    63,170.13x = 3,040,295,074.64
  5. Step 5: Solve for x
    x = 3,040,295,074.64/63,170.13
  6. Step 6: Final answer
    x = 48,128.68

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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.