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Finding the Fourth Proportional to 73,171.76, 109,907.64 and 48,247.76

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Solution

The fourth proportional to 73,171.76, 109,907.64 and 48,247.76 is: 72,470.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,171.76 : 109,907.64 = 48,247.76 : x
  2. Step 2: Convert to fraction form
    73,171.76/109,907.64 = 48,247.76/x
  3. Step 3: Cross multiply
    73,171.76x = 109,907.64 × 48,247.76
  4. Step 4: Simplify right side
    73,171.76x = 5,302,797,436.89
  5. Step 5: Solve for x
    x = 5,302,797,436.89/73,171.76
  6. Step 6: Final answer
    x = 72,470.55

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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.