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Finding the Fourth Proportional to 173,338.20, 260,007.30 and 84,648.60

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Solution

The fourth proportional to 173,338.20, 260,007.30 and 84,648.60 is: 126,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,338.20 : 260,007.30 = 84,648.60 : x
  2. Step 2: Convert to fraction form
    173,338.20/260,007.30 = 84,648.60/x
  3. Step 3: Cross multiply
    173,338.20x = 260,007.30 × 84,648.60
  4. Step 4: Simplify right side
    173,338.20x = 22,009,253,934.78
  5. Step 5: Solve for x
    x = 22,009,253,934.78/173,338.20
  6. Step 6: Final answer
    x = 126,972.90

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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.