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Finding the Fourth Proportional to 269,679.60, 404,632.80 and 144,874.80

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Solution

The fourth proportional to 269,679.60, 404,632.80 and 144,874.80 is: 217,373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,679.60 : 404,632.80 = 144,874.80 : x
  2. Step 2: Convert to fraction form
    269,679.60/404,632.80 = 144,874.80/x
  3. Step 3: Cross multiply
    269,679.60x = 404,632.80 × 144,874.80
  4. Step 4: Simplify right side
    269,679.60x = 58,621,095,973.44
  5. Step 5: Solve for x
    x = 58,621,095,973.44/269,679.60
  6. Step 6: Final answer
    x = 217,373.12

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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.