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Finding the Fourth Proportional to 87,984.88, 132,031.32 and 73,374.64

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Solution

The fourth proportional to 87,984.88, 132,031.32 and 73,374.64 is: 110,106.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984.88 : 132,031.32 = 73,374.64 : x
  2. Step 2: Convert to fraction form
    87,984.88/132,031.32 = 73,374.64/x
  3. Step 3: Cross multiply
    87,984.88x = 132,031.32 × 73,374.64
  4. Step 4: Simplify right side
    87,984.88x = 9,687,750,573.72
  5. Step 5: Solve for x
    x = 9,687,750,573.72/87,984.88
  6. Step 6: Final answer
    x = 110,106.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.