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Finding the Fourth Proportional to 269,809.14, 404,373.45 and 136,722.90

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Solution

The fourth proportional to 269,809.14, 404,373.45 and 136,722.90 is: 204,911.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,809.14 : 404,373.45 = 136,722.90 : x
  2. Step 2: Convert to fraction form
    269,809.14/404,373.45 = 136,722.90/x
  3. Step 3: Cross multiply
    269,809.14x = 404,373.45 × 136,722.90
  4. Step 4: Simplify right side
    269,809.14x = 55,287,110,767.01
  5. Step 5: Solve for x
    x = 55,287,110,767.01/269,809.14
  6. Step 6: Final answer
    x = 204,911.93

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1.5x scale

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.