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Finding the Fourth Proportional to 88,031.80, 132,047.70 and 25,694.20

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Solution

The fourth proportional to 88,031.80, 132,047.70 and 25,694.20 is: 38,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,031.80 : 132,047.70 = 25,694.20 : x
  2. Step 2: Convert to fraction form
    88,031.80/132,047.70 = 25,694.20/x
  3. Step 3: Cross multiply
    88,031.80x = 132,047.70 × 25,694.20
  4. Step 4: Simplify right side
    88,031.80x = 3,392,860,013.34
  5. Step 5: Solve for x
    x = 3,392,860,013.34/88,031.80
  6. Step 6: Final answer
    x = 38,541.30

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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.