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Finding the Fourth Proportional to 178,339.69, 267,431.76 and 67,453.93

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Solution

The fourth proportional to 178,339.69, 267,431.76 and 67,453.93 is: 101,151.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,339.69 : 267,431.76 = 67,453.93 : x
  2. Step 2: Convert to fraction form
    178,339.69/267,431.76 = 67,453.93/x
  3. Step 3: Cross multiply
    178,339.69x = 267,431.76 × 67,453.93
  4. Step 4: Simplify right side
    178,339.69x = 18,039,323,218.82
  5. Step 5: Solve for x
    x = 18,039,323,218.82/178,339.69
  6. Step 6: Final answer
    x = 101,151.48

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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.