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Finding the Fourth Proportional to 99,410.60, 149,026.92 and 36,186.12

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Solution

The fourth proportional to 99,410.60, 149,026.92 and 36,186.12 is: 54,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,410.60 : 149,026.92 = 36,186.12 : x
  2. Step 2: Convert to fraction form
    99,410.60/149,026.92 = 36,186.12/x
  3. Step 3: Cross multiply
    99,410.60x = 149,026.92 × 36,186.12
  4. Step 4: Simplify right side
    99,410.60x = 5,392,706,010.35
  5. Step 5: Solve for x
    x = 5,392,706,010.35/99,410.60
  6. Step 6: Final answer
    x = 54,246.79

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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.