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Finding the Fourth Proportional to 339,332.73, 508,886.06 and 136,876.55

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Solution

The fourth proportional to 339,332.73, 508,886.06 and 136,876.55 is: 205,269.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,332.73 : 508,886.06 = 136,876.55 : x
  2. Step 2: Convert to fraction form
    339,332.73/508,886.06 = 136,876.55/x
  3. Step 3: Cross multiply
    339,332.73x = 508,886.06 × 136,876.55
  4. Step 4: Simplify right side
    339,332.73x = 69,654,568,639.49
  5. Step 5: Solve for x
    x = 69,654,568,639.49/339,332.73
  6. Step 6: Final answer
    x = 205,269.23

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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.