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Finding the Fourth Proportional to 107,796.61, 148,763.91 and 60,049.90

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Solution

The fourth proportional to 107,796.61, 148,763.91 and 60,049.90 is: 82,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,796.61 : 148,763.91 = 60,049.90 : x
  2. Step 2: Convert to fraction form
    107,796.61/148,763.91 = 60,049.90/x
  3. Step 3: Cross multiply
    107,796.61x = 148,763.91 × 60,049.90
  4. Step 4: Simplify right side
    107,796.61x = 8,933,257,919.11
  5. Step 5: Solve for x
    x = 8,933,257,919.11/107,796.61
  6. Step 6: Final answer
    x = 82,871.42

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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.