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Finding the Fourth Proportional to 178,793.40, 268,341.30 and 73,687.80

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Solution

The fourth proportional to 178,793.40, 268,341.30 and 73,687.80 is: 110,594.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,793.40 : 268,341.30 = 73,687.80 : x
  2. Step 2: Convert to fraction form
    178,793.40/268,341.30 = 73,687.80/x
  3. Step 3: Cross multiply
    178,793.40x = 268,341.30 × 73,687.80
  4. Step 4: Simplify right side
    178,793.40x = 19,773,480,046.14
  5. Step 5: Solve for x
    x = 19,773,480,046.14/178,793.40
  6. Step 6: Final answer
    x = 110,594.02

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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.