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Finding the Fourth Proportional to 351,999.60, 527,999.40 and 240,025.20

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Solution

The fourth proportional to 351,999.60, 527,999.40 and 240,025.20 is: 360,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,999.60 : 527,999.40 = 240,025.20 : x
  2. Step 2: Convert to fraction form
    351,999.60/527,999.40 = 240,025.20/x
  3. Step 3: Cross multiply
    351,999.60x = 527,999.40 × 240,025.20
  4. Step 4: Simplify right side
    351,999.60x = 126,733,161,584.88
  5. Step 5: Solve for x
    x = 126,733,161,584.88/351,999.60
  6. Step 6: Final answer
    x = 360,037.80

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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.