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Finding the Fourth Proportional to 173,672.60, 260,444.10 and 68,469.80

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Solution

The fourth proportional to 173,672.60, 260,444.10 and 68,469.80 is: 102,679.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,672.60 : 260,444.10 = 68,469.80 : x
  2. Step 2: Convert to fraction form
    173,672.60/260,444.10 = 68,469.80/x
  3. Step 3: Cross multiply
    173,672.60x = 260,444.10 × 68,469.80
  4. Step 4: Simplify right side
    173,672.60x = 17,832,555,438.18
  5. Step 5: Solve for x
    x = 17,832,555,438.18/173,672.60
  6. Step 6: Final answer
    x = 102,679.15

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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.