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Finding the Fourth Proportional to 130,793.76, 180,550.20 and 88,409.70

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Solution

The fourth proportional to 130,793.76, 180,550.20 and 88,409.70 is: 122,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,793.76 : 180,550.20 = 88,409.70 : x
  2. Step 2: Convert to fraction form
    130,793.76/180,550.20 = 88,409.70/x
  3. Step 3: Cross multiply
    130,793.76x = 180,550.20 × 88,409.70
  4. Step 4: Simplify right side
    130,793.76x = 15,962,389,016.94
  5. Step 5: Solve for x
    x = 15,962,389,016.94/130,793.76
  6. Step 6: Final answer
    x = 122,042.44

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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.