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Finding the Fourth Proportional to 266,648.62, 367,975.76 and 145,797.70

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Solution

The fourth proportional to 266,648.62, 367,975.76 and 145,797.70 is: 201,201.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,648.62 : 367,975.76 = 145,797.70 : x
  2. Step 2: Convert to fraction form
    266,648.62/367,975.76 = 145,797.70/x
  3. Step 3: Cross multiply
    266,648.62x = 367,975.76 × 145,797.70
  4. Step 4: Simplify right side
    266,648.62x = 53,650,019,463.75
  5. Step 5: Solve for x
    x = 53,650,019,463.75/266,648.62
  6. Step 6: Final answer
    x = 201,201.19

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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.