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Finding the Third Proportional to 155,926.88 and 328,154.25

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Solution

The third proportional to 155,926.88 and 328,154.25 is: 690,613.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,926.88 : 328,154.25 = 328,154.25 : x
  2. Step 2: Convert to fraction form
    155,926.88/328,154.25 = 328,154.25/x
  3. Step 3: Cross multiply
    155,926.88x = 328,154.25 × 328,154.25
  4. Step 4: Simplify right side
    155,926.88x = 107,685,211,793.06
  5. Step 5: Solve for x
    x = 107,685,211,793.06/155,926.88
  6. Step 6: Final answer
    x = 690,613.54

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.