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Finding the Fourth Proportional to 99,165.60, 148,494.72 and 54,743.04

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Solution

The fourth proportional to 99,165.60, 148,494.72 and 54,743.04 is: 81,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,165.60 : 148,494.72 = 54,743.04 : x
  2. Step 2: Convert to fraction form
    99,165.60/148,494.72 = 54,743.04/x
  3. Step 3: Cross multiply
    99,165.60x = 148,494.72 × 54,743.04
  4. Step 4: Simplify right side
    99,165.60x = 8,129,052,396.75
  5. Step 5: Solve for x
    x = 8,129,052,396.75/99,165.60
  6. Step 6: Final answer
    x = 81,974.52

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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.