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Finding the Fourth Proportional to 266,437.20, 400,093.20 and 178,082.40

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Solution

The fourth proportional to 266,437.20, 400,093.20 and 178,082.40 is: 267,415.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,437.20 : 400,093.20 = 178,082.40 : x
  2. Step 2: Convert to fraction form
    266,437.20/400,093.20 = 178,082.40/x
  3. Step 3: Cross multiply
    266,437.20x = 400,093.20 × 178,082.40
  4. Step 4: Simplify right side
    266,437.20x = 71,249,557,279.68
  5. Step 5: Solve for x
    x = 71,249,557,279.68/266,437.20
  6. Step 6: Final answer
    x = 267,415.95

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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.