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Finding the Fourth Proportional to 244,609.12, 366,965.52 and 78,513.76

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Solution

The fourth proportional to 244,609.12, 366,965.52 and 78,513.76 is: 117,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,609.12 : 366,965.52 = 78,513.76 : x
  2. Step 2: Convert to fraction form
    244,609.12/366,965.52 = 78,513.76/x
  3. Step 3: Cross multiply
    244,609.12x = 366,965.52 × 78,513.76
  4. Step 4: Simplify right side
    244,609.12x = 28,811,842,765.56
  5. Step 5: Solve for x
    x = 28,811,842,765.56/244,609.12
  6. Step 6: Final answer
    x = 117,787.28

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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.