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Finding the Third Proportional to 155,530.50 and 327,663

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Solution

The third proportional to 155,530.50 and 327,663 is: 690,302.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,530.50 : 327,663 = 327,663 : x
  2. Step 2: Convert to fraction form
    155,530.50/327,663 = 327,663/x
  3. Step 3: Cross multiply
    155,530.50x = 327,663 × 327,663
  4. Step 4: Simplify right side
    155,530.50x = 107,363,041,569
  5. Step 5: Solve for x
    x = 107,363,041,569/155,530.50
  6. Step 6: Final answer
    x = 690,302.17

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.