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Finding the Fourth Proportional to 178,575.48, 267,863.24 and 139,162.12

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Solution

The fourth proportional to 178,575.48, 267,863.24 and 139,162.12 is: 208,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,575.48 : 267,863.24 = 139,162.12 : x
  2. Step 2: Convert to fraction form
    178,575.48/267,863.24 = 139,162.12/x
  3. Step 3: Cross multiply
    178,575.48x = 267,863.24 × 139,162.12
  4. Step 4: Simplify right side
    178,575.48x = 37,276,416,348.47
  5. Step 5: Solve for x
    x = 37,276,416,348.47/178,575.48
  6. Step 6: Final answer
    x = 208,743.20

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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.