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Finding the Fourth Proportional to 108,958.40, 163,000.20 and 94,329.80

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Solution

The fourth proportional to 108,958.40, 163,000.20 and 94,329.80 is: 141,116.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,958.40 : 163,000.20 = 94,329.80 : x
  2. Step 2: Convert to fraction form
    108,958.40/163,000.20 = 94,329.80/x
  3. Step 3: Cross multiply
    108,958.40x = 163,000.20 × 94,329.80
  4. Step 4: Simplify right side
    108,958.40x = 15,375,776,265.96
  5. Step 5: Solve for x
    x = 15,375,776,265.96/108,958.40
  6. Step 6: Final answer
    x = 141,116.02

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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.