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Finding the Fourth Proportional to 326,321.96, 489,506.52 and 136,591.52

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Solution

The fourth proportional to 326,321.96, 489,506.52 and 136,591.52 is: 204,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,321.96 : 489,506.52 = 136,591.52 : x
  2. Step 2: Convert to fraction form
    326,321.96/489,506.52 = 136,591.52/x
  3. Step 3: Cross multiply
    326,321.96x = 489,506.52 × 136,591.52
  4. Step 4: Simplify right side
    326,321.96x = 66,862,439,616.71
  5. Step 5: Solve for x
    x = 66,862,439,616.71/326,321.96
  6. Step 6: Final answer
    x = 204,897.15

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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.