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Finding the Fourth Proportional to 178,079.40, 267,119.10 and 118,495.80

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Solution

The fourth proportional to 178,079.40, 267,119.10 and 118,495.80 is: 177,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,079.40 : 267,119.10 = 118,495.80 : x
  2. Step 2: Convert to fraction form
    178,079.40/267,119.10 = 118,495.80/x
  3. Step 3: Cross multiply
    178,079.40x = 267,119.10 × 118,495.80
  4. Step 4: Simplify right side
    178,079.40x = 31,652,491,449.78
  5. Step 5: Solve for x
    x = 31,652,491,449.78/178,079.40
  6. Step 6: Final answer
    x = 177,743.70

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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.