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Finding the Fourth Proportional to 143,884.80, 198,334.08 and 108,023.04

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Solution

The fourth proportional to 143,884.80, 198,334.08 and 108,023.04 is: 148,901.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,884.80 : 198,334.08 = 108,023.04 : x
  2. Step 2: Convert to fraction form
    143,884.80/198,334.08 = 108,023.04/x
  3. Step 3: Cross multiply
    143,884.80x = 198,334.08 × 108,023.04
  4. Step 4: Simplify right side
    143,884.80x = 21,424,650,257.20
  5. Step 5: Solve for x
    x = 21,424,650,257.20/143,884.80
  6. Step 6: Final answer
    x = 148,901.41

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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.