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Finding the Fourth Proportional to 98,750.80, 147,694.20 and 88,296.40

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Solution

The fourth proportional to 98,750.80, 147,694.20 and 88,296.40 is: 132,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,750.80 : 147,694.20 = 88,296.40 : x
  2. Step 2: Convert to fraction form
    98,750.80/147,694.20 = 88,296.40/x
  3. Step 3: Cross multiply
    98,750.80x = 147,694.20 × 88,296.40
  4. Step 4: Simplify right side
    98,750.80x = 13,040,866,160.88
  5. Step 5: Solve for x
    x = 13,040,866,160.88/98,750.80
  6. Step 6: Final answer
    x = 132,058.33

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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.