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Finding the Fourth Proportional to 63,129.03, 87,079.64 and 37,618.62

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Solution

The fourth proportional to 63,129.03, 87,079.64 and 37,618.62 is: 51,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,129.03 : 87,079.64 = 37,618.62 : x
  2. Step 2: Convert to fraction form
    63,129.03/87,079.64 = 37,618.62/x
  3. Step 3: Cross multiply
    63,129.03x = 87,079.64 × 37,618.62
  4. Step 4: Simplify right side
    63,129.03x = 3,275,815,698.80
  5. Step 5: Solve for x
    x = 3,275,815,698.80/63,129.03
  6. Step 6: Final answer
    x = 51,890.80

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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.