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Finding the Fourth Proportional to 98,375.80, 147,600.96 and 58,961.20

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Solution

The fourth proportional to 98,375.80, 147,600.96 and 58,961.20 is: 88,464.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,375.80 : 147,600.96 = 58,961.20 : x
  2. Step 2: Convert to fraction form
    98,375.80/147,600.96 = 58,961.20/x
  3. Step 3: Cross multiply
    98,375.80x = 147,600.96 × 58,961.20
  4. Step 4: Simplify right side
    98,375.80x = 8,702,729,722.75
  5. Step 5: Solve for x
    x = 8,702,729,722.75/98,375.80
  6. Step 6: Final answer
    x = 88,464.13

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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.