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Finding the Fourth Proportional to 95,597.20, 143,395.80 and 80,390.80

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Solution

The fourth proportional to 95,597.20, 143,395.80 and 80,390.80 is: 120,586.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,597.20 : 143,395.80 = 80,390.80 : x
  2. Step 2: Convert to fraction form
    95,597.20/143,395.80 = 80,390.80/x
  3. Step 3: Cross multiply
    95,597.20x = 143,395.80 × 80,390.80
  4. Step 4: Simplify right side
    95,597.20x = 11,527,703,078.64
  5. Step 5: Solve for x
    x = 11,527,703,078.64/95,597.20
  6. Step 6: Final answer
    x = 120,586.20

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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.