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Finding the Fourth Proportional to 148,247.80, 204,582.05 and 80,264.80

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Solution

The fourth proportional to 148,247.80, 204,582.05 and 80,264.80 is: 110,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,247.80 : 204,582.05 = 80,264.80 : x
  2. Step 2: Convert to fraction form
    148,247.80/204,582.05 = 80,264.80/x
  3. Step 3: Cross multiply
    148,247.80x = 204,582.05 × 80,264.80
  4. Step 4: Simplify right side
    148,247.80x = 16,420,737,326.84
  5. Step 5: Solve for x
    x = 16,420,737,326.84/148,247.80
  6. Step 6: Final answer
    x = 110,765.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.