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Finding the Fourth Proportional to 235,631.03, 353,471.11 and 75,666.56

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Solution

The fourth proportional to 235,631.03, 353,471.11 and 75,666.56 is: 113,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,631.03 : 353,471.11 = 75,666.56 : x
  2. Step 2: Convert to fraction form
    235,631.03/353,471.11 = 75,666.56/x
  3. Step 3: Cross multiply
    235,631.03x = 353,471.11 × 75,666.56
  4. Step 4: Simplify right side
    235,631.03x = 26,745,940,996.56
  5. Step 5: Solve for x
    x = 26,745,940,996.56/235,631.03
  6. Step 6: Final answer
    x = 113,507.72

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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.