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Finding the Fourth Proportional to 79,723.70, 119,585.69 and 74,852.15

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Solution

The fourth proportional to 79,723.70, 119,585.69 and 74,852.15 is: 112,278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,723.70 : 119,585.69 = 74,852.15 : x
  2. Step 2: Convert to fraction form
    79,723.70/119,585.69 = 74,852.15/x
  3. Step 3: Cross multiply
    79,723.70x = 119,585.69 × 74,852.15
  4. Step 4: Simplify right side
    79,723.70x = 8,951,246,491.83
  5. Step 5: Solve for x
    x = 8,951,246,491.83/79,723.70
  6. Step 6: Final answer
    x = 112,278.37

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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.