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Finding the Fourth Proportional to 313,169.57, 469,750.25 and 76,514.30

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Solution

The fourth proportional to 313,169.57, 469,750.25 and 76,514.30 is: 114,770.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,169.57 : 469,750.25 = 76,514.30 : x
  2. Step 2: Convert to fraction form
    313,169.57/469,750.25 = 76,514.30/x
  3. Step 3: Cross multiply
    313,169.57x = 469,750.25 × 76,514.30
  4. Step 4: Simplify right side
    313,169.57x = 35,942,609,513.71
  5. Step 5: Solve for x
    x = 35,942,609,513.71/313,169.57
  6. Step 6: Final answer
    x = 114,770.44

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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.