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Finding the Fourth Proportional to 73,474.60, 109,920.30 and 63,722.20

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Solution

The fourth proportional to 73,474.60, 109,920.30 and 63,722.20 is: 95,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,474.60 : 109,920.30 = 63,722.20 : x
  2. Step 2: Convert to fraction form
    73,474.60/109,920.30 = 63,722.20/x
  3. Step 3: Cross multiply
    73,474.60x = 109,920.30 × 63,722.20
  4. Step 4: Simplify right side
    73,474.60x = 7,004,363,340.66
  5. Step 5: Solve for x
    x = 7,004,363,340.66/73,474.60
  6. Step 6: Final answer
    x = 95,330.40

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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.