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Finding the Fourth Proportional to 73,640.20, 110,460.30 and 63,617.80

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Solution

The fourth proportional to 73,640.20, 110,460.30 and 63,617.80 is: 95,426.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,640.20 : 110,460.30 = 63,617.80 : x
  2. Step 2: Convert to fraction form
    73,640.20/110,460.30 = 63,617.80/x
  3. Step 3: Cross multiply
    73,640.20x = 110,460.30 × 63,617.80
  4. Step 4: Simplify right side
    73,640.20x = 7,027,241,273.34
  5. Step 5: Solve for x
    x = 7,027,241,273.34/73,640.20
  6. Step 6: Final answer
    x = 95,426.70

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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.