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Finding the Fourth Proportional to 410,851.20, 616,276.80 and 130,396.80

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Solution

The fourth proportional to 410,851.20, 616,276.80 and 130,396.80 is: 195,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,851.20 : 616,276.80 = 130,396.80 : x
  2. Step 2: Convert to fraction form
    410,851.20/616,276.80 = 130,396.80/x
  3. Step 3: Cross multiply
    410,851.20x = 616,276.80 × 130,396.80
  4. Step 4: Simplify right side
    410,851.20x = 80,360,522,634.24
  5. Step 5: Solve for x
    x = 80,360,522,634.24/410,851.20
  6. Step 6: Final answer
    x = 195,595.20

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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.