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Finding the Fourth Proportional to 268,309.80, 402,003.90 and 174,767.40

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Solution

The fourth proportional to 268,309.80, 402,003.90 and 174,767.40 is: 261,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,309.80 : 402,003.90 = 174,767.40 : x
  2. Step 2: Convert to fraction form
    268,309.80/402,003.90 = 174,767.40/x
  3. Step 3: Cross multiply
    268,309.80x = 402,003.90 × 174,767.40
  4. Step 4: Simplify right side
    268,309.80x = 70,257,176,392.86
  5. Step 5: Solve for x
    x = 70,257,176,392.86/268,309.80
  6. Step 6: Final answer
    x = 261,850.95

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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.