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Finding the Fourth Proportional to 80,115.98, 110,560.76 and 44,308.40

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Solution

The fourth proportional to 80,115.98, 110,560.76 and 44,308.40 is: 61,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,115.98 : 110,560.76 = 44,308.40 : x
  2. Step 2: Convert to fraction form
    80,115.98/110,560.76 = 44,308.40/x
  3. Step 3: Cross multiply
    80,115.98x = 110,560.76 × 44,308.40
  4. Step 4: Simplify right side
    80,115.98x = 4,898,770,378.38
  5. Step 5: Solve for x
    x = 4,898,770,378.38/80,115.98
  6. Step 6: Final answer
    x = 61,145.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.