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Finding the Fourth Proportional to 173,405.80, 260,003.10 and 68,098.60

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Solution

The fourth proportional to 173,405.80, 260,003.10 and 68,098.60 is: 102,106.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,405.80 : 260,003.10 = 68,098.60 : x
  2. Step 2: Convert to fraction form
    173,405.80/260,003.10 = 68,098.60/x
  3. Step 3: Cross multiply
    173,405.80x = 260,003.10 × 68,098.60
  4. Step 4: Simplify right side
    173,405.80x = 17,705,847,105.66
  5. Step 5: Solve for x
    x = 17,705,847,105.66/173,405.80
  6. Step 6: Final answer
    x = 102,106.43

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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.