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Finding the Fourth Proportional to 404,232.60, 606,348.90 and 137,904.60

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Solution

The fourth proportional to 404,232.60, 606,348.90 and 137,904.60 is: 206,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,232.60 : 606,348.90 = 137,904.60 : x
  2. Step 2: Convert to fraction form
    404,232.60/606,348.90 = 137,904.60/x
  3. Step 3: Cross multiply
    404,232.60x = 606,348.90 × 137,904.60
  4. Step 4: Simplify right side
    404,232.60x = 83,618,302,514.94
  5. Step 5: Solve for x
    x = 83,618,302,514.94/404,232.60
  6. Step 6: Final answer
    x = 206,856.90

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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.