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Finding the Fourth Proportional to 99,959.56, 149,865.27 and 60,507.34

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Solution

The fourth proportional to 99,959.56, 149,865.27 and 60,507.34 is: 90,716.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,959.56 : 149,865.27 = 60,507.34 : x
  2. Step 2: Convert to fraction form
    99,959.56/149,865.27 = 60,507.34/x
  3. Step 3: Cross multiply
    99,959.56x = 149,865.27 × 60,507.34
  4. Step 4: Simplify right side
    99,959.56x = 9,067,948,846.08
  5. Step 5: Solve for x
    x = 9,067,948,846.08/99,959.56
  6. Step 6: Final answer
    x = 90,716.17

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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.