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Finding the Fourth Proportional to 109,074.93, 150,472.87 and 63,754.82

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Solution

The fourth proportional to 109,074.93, 150,472.87 and 63,754.82 is: 87,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,074.93 : 150,472.87 = 63,754.82 : x
  2. Step 2: Convert to fraction form
    109,074.93/150,472.87 = 63,754.82/x
  3. Step 3: Cross multiply
    109,074.93x = 150,472.87 × 63,754.82
  4. Step 4: Simplify right side
    109,074.93x = 9,593,370,741.73
  5. Step 5: Solve for x
    x = 9,593,370,741.73/109,074.93
  6. Step 6: Final answer
    x = 87,952.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.