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Finding the Fourth Proportional to 173,862.60, 260,729.10 and 68,659.80

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Solution

The fourth proportional to 173,862.60, 260,729.10 and 68,659.80 is: 102,964.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,862.60 : 260,729.10 = 68,659.80 : x
  2. Step 2: Convert to fraction form
    173,862.60/260,729.10 = 68,659.80/x
  3. Step 3: Cross multiply
    173,862.60x = 260,729.10 × 68,659.80
  4. Step 4: Simplify right side
    173,862.60x = 17,901,607,860.18
  5. Step 5: Solve for x
    x = 17,901,607,860.18/173,862.60
  6. Step 6: Final answer
    x = 102,964.11

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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.