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Finding the Fourth Proportional to 144,001.58, 198,722.30 and 80,339.40

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Solution

The fourth proportional to 144,001.58, 198,722.30 and 80,339.40 is: 110,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,001.58 : 198,722.30 = 80,339.40 : x
  2. Step 2: Convert to fraction form
    144,001.58/198,722.30 = 80,339.40/x
  3. Step 3: Cross multiply
    144,001.58x = 198,722.30 × 80,339.40
  4. Step 4: Simplify right side
    144,001.58x = 15,965,230,348.62
  5. Step 5: Solve for x
    x = 15,965,230,348.62/144,001.58
  6. Step 6: Final answer
    x = 110,868.44

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1.5x scale

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.