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Finding the Fourth Proportional to 179,793.80, 248,116.50 and 99,223.40

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Solution

The fourth proportional to 179,793.80, 248,116.50 and 99,223.40 is: 136,928.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,793.80 : 248,116.50 = 99,223.40 : x
  2. Step 2: Convert to fraction form
    179,793.80/248,116.50 = 99,223.40/x
  3. Step 3: Cross multiply
    179,793.80x = 248,116.50 × 99,223.40
  4. Step 4: Simplify right side
    179,793.80x = 24,618,962,726.10
  5. Step 5: Solve for x
    x = 24,618,962,726.10/179,793.80
  6. Step 6: Final answer
    x = 136,928.87

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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.