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Finding the Fourth Proportional to 269,862.60, 404,145.90 and 144,928.20

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Solution

The fourth proportional to 269,862.60, 404,145.90 and 144,928.20 is: 217,044.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,862.60 : 404,145.90 = 144,928.20 : x
  2. Step 2: Convert to fraction form
    269,862.60/404,145.90 = 144,928.20/x
  3. Step 3: Cross multiply
    269,862.60x = 404,145.90 × 144,928.20
  4. Step 4: Simplify right side
    269,862.60x = 58,572,137,824.38
  5. Step 5: Solve for x
    x = 58,572,137,824.38/269,862.60
  6. Step 6: Final answer
    x = 217,044.30

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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.