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Finding the Fourth Proportional to 74,791.76, 112,091.66 and 32,660.42

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Solution

The fourth proportional to 74,791.76, 112,091.66 and 32,660.42 is: 48,948.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,791.76 : 112,091.66 = 32,660.42 : x
  2. Step 2: Convert to fraction form
    74,791.76/112,091.66 = 32,660.42/x
  3. Step 3: Cross multiply
    74,791.76x = 112,091.66 × 32,660.42
  4. Step 4: Simplify right side
    74,791.76x = 3,660,960,811.02
  5. Step 5: Solve for x
    x = 3,660,960,811.02/74,791.76
  6. Step 6: Final answer
    x = 48,948.72

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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.