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Finding the Fourth Proportional to 269,616.96, 404,477.28 and 103,392

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Solution

The fourth proportional to 269,616.96, 404,477.28 and 103,392 is: 155,107.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,616.96 : 404,477.28 = 103,392 : x
  2. Step 2: Convert to fraction form
    269,616.96/404,477.28 = 103,392/x
  3. Step 3: Cross multiply
    269,616.96x = 404,477.28 × 103,392
  4. Step 4: Simplify right side
    269,616.96x = 41,819,714,933.76
  5. Step 5: Solve for x
    x = 41,819,714,933.76/269,616.96
  6. Step 6: Final answer
    x = 155,107.88

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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.