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Finding the Fourth Proportional to 231,870.80, 347,287.80 and 179,109.20

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Solution

The fourth proportional to 231,870.80, 347,287.80 and 179,109.20 is: 268,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,870.80 : 347,287.80 = 179,109.20 : x
  2. Step 2: Convert to fraction form
    231,870.80/347,287.80 = 179,109.20/x
  3. Step 3: Cross multiply
    231,870.80x = 347,287.80 × 179,109.20
  4. Step 4: Simplify right side
    231,870.80x = 62,202,440,027.76
  5. Step 5: Solve for x
    x = 62,202,440,027.76/231,870.80
  6. Step 6: Final answer
    x = 268,263.36

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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.