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Finding the Fourth Proportional to 95,909.70, 143,864.55 and 76,080.90

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Solution

The fourth proportional to 95,909.70, 143,864.55 and 76,080.90 is: 114,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,909.70 : 143,864.55 = 76,080.90 : x
  2. Step 2: Convert to fraction form
    95,909.70/143,864.55 = 76,080.90/x
  3. Step 3: Cross multiply
    95,909.70x = 143,864.55 × 76,080.90
  4. Step 4: Simplify right side
    95,909.70x = 10,945,344,442.10
  5. Step 5: Solve for x
    x = 10,945,344,442.10/95,909.70
  6. Step 6: Final answer
    x = 114,121.35

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1.5x scale

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.