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Finding the Fourth Proportional to 326,383.38, 489,598.02 and 136,652.28

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Solution

The fourth proportional to 326,383.38, 489,598.02 and 136,652.28 is: 204,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,383.38 : 489,598.02 = 136,652.28 : x
  2. Step 2: Convert to fraction form
    326,383.38/489,598.02 = 136,652.28/x
  3. Step 3: Cross multiply
    326,383.38x = 489,598.02 × 136,652.28
  4. Step 4: Simplify right side
    326,383.38x = 66,904,685,716.49
  5. Step 5: Solve for x
    x = 66,904,685,716.49/326,383.38
  6. Step 6: Final answer
    x = 204,988.03

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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.