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Finding the Fourth Proportional to 178,651.44, 267,626.88 and 103,613.94

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Solution

The fourth proportional to 178,651.44, 267,626.88 and 103,613.94 is: 155,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,651.44 : 267,626.88 = 103,613.94 : x
  2. Step 2: Convert to fraction form
    178,651.44/267,626.88 = 103,613.94/x
  3. Step 3: Cross multiply
    178,651.44x = 267,626.88 × 103,613.94
  4. Step 4: Simplify right side
    178,651.44x = 27,729,875,486.71
  5. Step 5: Solve for x
    x = 27,729,875,486.71/178,651.44
  6. Step 6: Final answer
    x = 155,217.76

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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.