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Finding the Fourth Proportional to 125,043.44, 187,564.87 and 96,621.72

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Solution

The fourth proportional to 125,043.44, 187,564.87 and 96,621.72 is: 144,932.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,043.44 : 187,564.87 = 96,621.72 : x
  2. Step 2: Convert to fraction form
    125,043.44/187,564.87 = 96,621.72/x
  3. Step 3: Cross multiply
    125,043.44x = 187,564.87 × 96,621.72
  4. Step 4: Simplify right side
    125,043.44x = 18,122,840,350.98
  5. Step 5: Solve for x
    x = 18,122,840,350.98/125,043.44
  6. Step 6: Final answer
    x = 144,932.36

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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.