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Finding the Fourth Proportional to 244,657.90, 366,986.85 and 78,462.70

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Solution

The fourth proportional to 244,657.90, 366,986.85 and 78,462.70 is: 117,694.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,657.90 : 366,986.85 = 78,462.70 : x
  2. Step 2: Convert to fraction form
    244,657.90/366,986.85 = 78,462.70/x
  3. Step 3: Cross multiply
    244,657.90x = 366,986.85 × 78,462.70
  4. Step 4: Simplify right side
    244,657.90x = 28,794,779,115.50
  5. Step 5: Solve for x
    x = 28,794,779,115.50/244,657.90
  6. Step 6: Final answer
    x = 117,694.05

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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.