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Finding the Fourth Proportional to 267,358.10, 401,123.55 and 178,711.70

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Solution

The fourth proportional to 267,358.10, 401,123.55 and 178,711.70 is: 268,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,358.10 : 401,123.55 = 178,711.70 : x
  2. Step 2: Convert to fraction form
    267,358.10/401,123.55 = 178,711.70/x
  3. Step 3: Cross multiply
    267,358.10x = 401,123.55 × 178,711.70
  4. Step 4: Simplify right side
    267,358.10x = 71,685,471,530.54
  5. Step 5: Solve for x
    x = 71,685,471,530.54/267,358.10
  6. Step 6: Final answer
    x = 268,125.30

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1.5x scale

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.