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Finding the Fourth Proportional to 268,309.30, 402,003.15 and 174,766.90

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Solution

The fourth proportional to 268,309.30, 402,003.15 and 174,766.90 is: 261,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,309.30 : 402,003.15 = 174,766.90 : x
  2. Step 2: Convert to fraction form
    268,309.30/402,003.15 = 174,766.90/x
  3. Step 3: Cross multiply
    268,309.30x = 402,003.15 × 174,766.90
  4. Step 4: Simplify right side
    268,309.30x = 70,256,844,315.74
  5. Step 5: Solve for x
    x = 70,256,844,315.74/268,309.30
  6. Step 6: Final answer
    x = 261,850.20

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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.