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Finding the Fourth Proportional to 63,042.66, 87,124.28 and 51,694.56

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Solution

The fourth proportional to 63,042.66, 87,124.28 and 51,694.56 is: 71,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,042.66 : 87,124.28 = 51,694.56 : x
  2. Step 2: Convert to fraction form
    63,042.66/87,124.28 = 51,694.56/x
  3. Step 3: Cross multiply
    63,042.66x = 87,124.28 × 51,694.56
  4. Step 4: Simplify right side
    63,042.66x = 4,503,851,061.44
  5. Step 5: Solve for x
    x = 4,503,851,061.44/63,042.66
  6. Step 6: Final answer
    x = 71,441.32

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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.