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Finding the Fourth Proportional to 74,432.60, 111,743.64 and 48,246.92

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Solution

The fourth proportional to 74,432.60, 111,743.64 and 48,246.92 is: 72,431.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,432.60 : 111,743.64 = 48,246.92 : x
  2. Step 2: Convert to fraction form
    74,432.60/111,743.64 = 48,246.92/x
  3. Step 3: Cross multiply
    74,432.60x = 111,743.64 × 48,246.92
  4. Step 4: Simplify right side
    74,432.60x = 5,391,286,459.59
  5. Step 5: Solve for x
    x = 5,391,286,459.59/74,432.60
  6. Step 6: Final answer
    x = 72,431.79

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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.