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Finding the Fourth Proportional to 266,305.16, 367,503.90 and 145,449.92

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Solution

The fourth proportional to 266,305.16, 367,503.90 and 145,449.92 is: 200,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,305.16 : 367,503.90 = 145,449.92 : x
  2. Step 2: Convert to fraction form
    266,305.16/367,503.90 = 145,449.92/x
  3. Step 3: Cross multiply
    266,305.16x = 367,503.90 × 145,449.92
  4. Step 4: Simplify right side
    266,305.16x = 53,453,412,854.69
  5. Step 5: Solve for x
    x = 53,453,412,854.69/266,305.16
  6. Step 6: Final answer
    x = 200,722.41

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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.