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Finding the Fourth Proportional to 63,745.61, 87,876.72 and 42,199.26

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Solution

The fourth proportional to 63,745.61, 87,876.72 and 42,199.26 is: 58,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,745.61 : 87,876.72 = 42,199.26 : x
  2. Step 2: Convert to fraction form
    63,745.61/87,876.72 = 42,199.26/x
  3. Step 3: Cross multiply
    63,745.61x = 87,876.72 × 42,199.26
  4. Step 4: Simplify right side
    63,745.61x = 3,708,332,555.23
  5. Step 5: Solve for x
    x = 3,708,332,555.23/63,745.61
  6. Step 6: Final answer
    x = 58,173.93

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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.