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Finding the Fourth Proportional to 99,891.04, 149,723.52 and 40,652.32

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Solution

The fourth proportional to 99,891.04, 149,723.52 and 40,652.32 is: 60,932.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,891.04 : 149,723.52 = 40,652.32 : x
  2. Step 2: Convert to fraction form
    99,891.04/149,723.52 = 40,652.32/x
  3. Step 3: Cross multiply
    99,891.04x = 149,723.52 × 40,652.32
  4. Step 4: Simplify right side
    99,891.04x = 6,086,608,446.57
  5. Step 5: Solve for x
    x = 6,086,608,446.57/99,891.04
  6. Step 6: Final answer
    x = 60,932.48

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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.