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Finding the Fourth Proportional to 269,462, 404,191.38 and 69,781.88

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Solution

The fourth proportional to 269,462, 404,191.38 and 69,781.88 is: 104,672.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,462 : 404,191.38 = 69,781.88 : x
  2. Step 2: Convert to fraction form
    269,462/404,191.38 = 69,781.88/x
  3. Step 3: Cross multiply
    269,462x = 404,191.38 × 69,781.88
  4. Step 4: Simplify right side
    269,462x = 28,205,234,376.19
  5. Step 5: Solve for x
    x = 28,205,234,376.19/269,462
  6. Step 6: Final answer
    x = 104,672.40

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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.