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Finding the Fourth Proportional to 267,176.78, 400,808.73 and 126,888.02

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Solution

The fourth proportional to 267,176.78, 400,808.73 and 126,888.02 is: 190,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,176.78 : 400,808.73 = 126,888.02 : x
  2. Step 2: Convert to fraction form
    267,176.78/400,808.73 = 126,888.02/x
  3. Step 3: Cross multiply
    267,176.78x = 400,808.73 × 126,888.02
  4. Step 4: Simplify right side
    267,176.78x = 50,857,826,148.41
  5. Step 5: Solve for x
    x = 50,857,826,148.41/267,176.78
  6. Step 6: Final answer
    x = 190,352.72

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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.