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Finding the Fourth Proportional to 243,701.11, 365,410.96 and 75,176.19

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Solution

The fourth proportional to 243,701.11, 365,410.96 and 75,176.19 is: 112,720.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,701.11 : 365,410.96 = 75,176.19 : x
  2. Step 2: Convert to fraction form
    243,701.11/365,410.96 = 75,176.19/x
  3. Step 3: Cross multiply
    243,701.11x = 365,410.96 × 75,176.19
  4. Step 4: Simplify right side
    243,701.11x = 27,470,203,991.97
  5. Step 5: Solve for x
    x = 27,470,203,991.97/243,701.11
  6. Step 6: Final answer
    x = 112,720.88

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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.