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Finding the Fourth Proportional to 144,608.20, 216,944.70 and 55,853.80

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Solution

The fourth proportional to 144,608.20, 216,944.70 and 55,853.80 is: 83,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,608.20 : 216,944.70 = 55,853.80 : x
  2. Step 2: Convert to fraction form
    144,608.20/216,944.70 = 55,853.80/x
  3. Step 3: Cross multiply
    144,608.20x = 216,944.70 × 55,853.80
  4. Step 4: Simplify right side
    144,608.20x = 12,117,185,884.86
  5. Step 5: Solve for x
    x = 12,117,185,884.86/144,608.20
  6. Step 6: Final answer
    x = 83,793.21

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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.