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Finding the Fourth Proportional to 144,057.61, 198,800.24 and 79,525.70

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Solution

The fourth proportional to 144,057.61, 198,800.24 and 79,525.70 is: 109,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,057.61 : 198,800.24 = 79,525.70 : x
  2. Step 2: Convert to fraction form
    144,057.61/198,800.24 = 79,525.70/x
  3. Step 3: Cross multiply
    144,057.61x = 198,800.24 × 79,525.70
  4. Step 4: Simplify right side
    144,057.61x = 15,809,728,246.17
  5. Step 5: Solve for x
    x = 15,809,728,246.17/144,057.61
  6. Step 6: Final answer
    x = 109,745.87

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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.