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Finding the Fourth Proportional to 95,423.20, 143,134.80 and 53,432.80

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Solution

The fourth proportional to 95,423.20, 143,134.80 and 53,432.80 is: 80,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,423.20 : 143,134.80 = 53,432.80 : x
  2. Step 2: Convert to fraction form
    95,423.20/143,134.80 = 53,432.80/x
  3. Step 3: Cross multiply
    95,423.20x = 143,134.80 × 53,432.80
  4. Step 4: Simplify right side
    95,423.20x = 7,648,093,141.44
  5. Step 5: Solve for x
    x = 7,648,093,141.44/95,423.20
  6. Step 6: Final answer
    x = 80,149.20

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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.