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Finding the Fourth Proportional to 173,388.60, 260,230.56 and 68,281.38

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Solution

The fourth proportional to 173,388.60, 260,230.56 and 68,281.38 is: 102,480.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,388.60 : 260,230.56 = 68,281.38 : x
  2. Step 2: Convert to fraction form
    173,388.60/260,230.56 = 68,281.38/x
  3. Step 3: Cross multiply
    173,388.60x = 260,230.56 × 68,281.38
  4. Step 4: Simplify right side
    173,388.60x = 17,768,901,754.97
  5. Step 5: Solve for x
    x = 17,768,901,754.97/173,388.60
  6. Step 6: Final answer
    x = 102,480.22

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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.