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Finding the Fourth Proportional to 73,372.60, 109,767.30 and 63,620.20

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Solution

The fourth proportional to 73,372.60, 109,767.30 and 63,620.20 is: 95,177.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,372.60 : 109,767.30 = 63,620.20 : x
  2. Step 2: Convert to fraction form
    73,372.60/109,767.30 = 63,620.20/x
  3. Step 3: Cross multiply
    73,372.60x = 109,767.30 × 63,620.20
  4. Step 4: Simplify right side
    73,372.60x = 6,983,417,579.46
  5. Step 5: Solve for x
    x = 6,983,417,579.46/73,372.60
  6. Step 6: Final answer
    x = 95,177.46

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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.