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Finding the Fourth Proportional to 239,467.20, 359,200.80 and 235,371.20

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Solution

The fourth proportional to 239,467.20, 359,200.80 and 235,371.20 is: 353,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,467.20 : 359,200.80 = 235,371.20 : x
  2. Step 2: Convert to fraction form
    239,467.20/359,200.80 = 235,371.20/x
  3. Step 3: Cross multiply
    239,467.20x = 359,200.80 × 235,371.20
  4. Step 4: Simplify right side
    239,467.20x = 84,545,523,336.96
  5. Step 5: Solve for x
    x = 84,545,523,336.96/239,467.20
  6. Step 6: Final answer
    x = 353,056.80

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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.