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Finding the Fourth Proportional to 144,003.60, 216,235.80 and 108,982.80

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Solution

The fourth proportional to 144,003.60, 216,235.80 and 108,982.80 is: 163,648.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,003.60 : 216,235.80 = 108,982.80 : x
  2. Step 2: Convert to fraction form
    144,003.60/216,235.80 = 108,982.80/x
  3. Step 3: Cross multiply
    144,003.60x = 216,235.80 × 108,982.80
  4. Step 4: Simplify right side
    144,003.60x = 23,565,982,944.24
  5. Step 5: Solve for x
    x = 23,565,982,944.24/144,003.60
  6. Step 6: Final answer
    x = 163,648.57

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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.