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Finding the Fourth Proportional to 266,422.62, 367,658.94 and 145,561.32

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Solution

The fourth proportional to 266,422.62, 367,658.94 and 145,561.32 is: 200,872.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,422.62 : 367,658.94 = 145,561.32 : x
  2. Step 2: Convert to fraction form
    266,422.62/367,658.94 = 145,561.32/x
  3. Step 3: Cross multiply
    266,422.62x = 367,658.94 × 145,561.32
  4. Step 4: Simplify right side
    266,422.62x = 53,516,920,616.20
  5. Step 5: Solve for x
    x = 53,516,920,616.20/266,422.62
  6. Step 6: Final answer
    x = 200,872.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.