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Finding the Fourth Proportional to 116,891.40, 175,337.10 and 72,654.60

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Solution

The fourth proportional to 116,891.40, 175,337.10 and 72,654.60 is: 108,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,891.40 : 175,337.10 = 72,654.60 : x
  2. Step 2: Convert to fraction form
    116,891.40/175,337.10 = 72,654.60/x
  3. Step 3: Cross multiply
    116,891.40x = 175,337.10 × 72,654.60
  4. Step 4: Simplify right side
    116,891.40x = 12,739,046,865.66
  5. Step 5: Solve for x
    x = 12,739,046,865.66/116,891.40
  6. Step 6: Final answer
    x = 108,981.90

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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.