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Finding the Fourth Proportional to 112,986.80, 169,480.20 and 95,490.80

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Solution

The fourth proportional to 112,986.80, 169,480.20 and 95,490.80 is: 143,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,986.80 : 169,480.20 = 95,490.80 : x
  2. Step 2: Convert to fraction form
    112,986.80/169,480.20 = 95,490.80/x
  3. Step 3: Cross multiply
    112,986.80x = 169,480.20 × 95,490.80
  4. Step 4: Simplify right side
    112,986.80x = 16,183,799,882.16
  5. Step 5: Solve for x
    x = 16,183,799,882.16/112,986.80
  6. Step 6: Final answer
    x = 143,236.20

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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.