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Finding the Fourth Proportional to 144,193.52, 198,958.16 and 80,521.52

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Solution

The fourth proportional to 144,193.52, 198,958.16 and 80,521.52 is: 111,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,193.52 : 198,958.16 = 80,521.52 : x
  2. Step 2: Convert to fraction form
    144,193.52/198,958.16 = 80,521.52/x
  3. Step 3: Cross multiply
    144,193.52x = 198,958.16 × 80,521.52
  4. Step 4: Simplify right side
    144,193.52x = 16,020,413,459.60
  5. Step 5: Solve for x
    x = 16,020,413,459.60/144,193.52
  6. Step 6: Final answer
    x = 111,103.56

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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.