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Finding the Fourth Proportional to 244,608.12, 366,964.02 and 78,512.76

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Solution

The fourth proportional to 244,608.12, 366,964.02 and 78,512.76 is: 117,785.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,608.12 : 366,964.02 = 78,512.76 : x
  2. Step 2: Convert to fraction form
    244,608.12/366,964.02 = 78,512.76/x
  3. Step 3: Cross multiply
    244,608.12x = 366,964.02 × 78,512.76
  4. Step 4: Simplify right side
    244,608.12x = 28,811,358,030.90
  5. Step 5: Solve for x
    x = 28,811,358,030.90/244,608.12
  6. Step 6: Final answer
    x = 117,785.78

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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.