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Finding the Fourth Proportional to 63,121.52, 87,110.52 and 36,272.72

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Solution

The fourth proportional to 63,121.52, 87,110.52 and 36,272.72 is: 50,057.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,121.52 : 87,110.52 = 36,272.72 : x
  2. Step 2: Convert to fraction form
    63,121.52/87,110.52 = 36,272.72/x
  3. Step 3: Cross multiply
    63,121.52x = 87,110.52 × 36,272.72
  4. Step 4: Simplify right side
    63,121.52x = 3,159,735,501.01
  5. Step 5: Solve for x
    x = 3,159,735,501.01/63,121.52
  6. Step 6: Final answer
    x = 50,057.98

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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.