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Finding the Fourth Proportional to 324,515.60, 486,627.60 and 124,769.60

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Solution

The fourth proportional to 324,515.60, 486,627.60 and 124,769.60 is: 187,098.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,515.60 : 486,627.60 = 124,769.60 : x
  2. Step 2: Convert to fraction form
    324,515.60/486,627.60 = 124,769.60/x
  3. Step 3: Cross multiply
    324,515.60x = 486,627.60 × 124,769.60
  4. Step 4: Simplify right side
    324,515.60x = 60,716,331,000.96
  5. Step 5: Solve for x
    x = 60,716,331,000.96/324,515.60
  6. Step 6: Final answer
    x = 187,098.34

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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.