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Finding the Fourth Proportional to 180,607.20, 270,721.66 and 60,634.70

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Solution

The fourth proportional to 180,607.20, 270,721.66 and 60,634.70 is: 90,888.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,607.20 : 270,721.66 = 60,634.70 : x
  2. Step 2: Convert to fraction form
    180,607.20/270,721.66 = 60,634.70/x
  3. Step 3: Cross multiply
    180,607.20x = 270,721.66 × 60,634.70
  4. Step 4: Simplify right side
    180,607.20x = 16,415,126,766.91
  5. Step 5: Solve for x
    x = 16,415,126,766.91/180,607.20
  6. Step 6: Final answer
    x = 90,888.55

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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.