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Finding the Fourth Proportional to 266,507.71, 367,781.60 and 145,648.96

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Solution

The fourth proportional to 266,507.71, 367,781.60 and 145,648.96 is: 200,996.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,507.71 : 367,781.60 = 145,648.96 : x
  2. Step 2: Convert to fraction form
    266,507.71/367,781.60 = 145,648.96/x
  3. Step 3: Cross multiply
    266,507.71x = 367,781.60 × 145,648.96
  4. Step 4: Simplify right side
    266,507.71x = 53,567,007,547.14
  5. Step 5: Solve for x
    x = 53,567,007,547.14/266,507.71
  6. Step 6: Final answer
    x = 200,996.09

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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.