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Finding the Fourth Proportional to 107,925.44, 161,909.92 and 45,595.84

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Solution

The fourth proportional to 107,925.44, 161,909.92 and 45,595.84 is: 68,402.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,925.44 : 161,909.92 = 45,595.84 : x
  2. Step 2: Convert to fraction form
    107,925.44/161,909.92 = 45,595.84/x
  3. Step 3: Cross multiply
    107,925.44x = 161,909.92 × 45,595.84
  4. Step 4: Simplify right side
    107,925.44x = 7,382,418,806.73
  5. Step 5: Solve for x
    x = 7,382,418,806.73/107,925.44
  6. Step 6: Final answer
    x = 68,402.95

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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.