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Finding the Fourth Proportional to 73,104.56, 109,662.24 and 64,399.76

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Solution

The fourth proportional to 73,104.56, 109,662.24 and 64,399.76 is: 96,604.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104.56 : 109,662.24 = 64,399.76 : x
  2. Step 2: Convert to fraction form
    73,104.56/109,662.24 = 64,399.76/x
  3. Step 3: Cross multiply
    73,104.56x = 109,662.24 × 64,399.76
  4. Step 4: Simplify right side
    73,104.56x = 7,062,221,937.06
  5. Step 5: Solve for x
    x = 7,062,221,937.06/73,104.56
  6. Step 6: Final answer
    x = 96,604.40

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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.