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Finding the Third Proportional to 211,117.50 and 327,387

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Solution

The third proportional to 211,117.50 and 327,387 is: 507,690.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,117.50 : 327,387 = 327,387 : x
  2. Step 2: Convert to fraction form
    211,117.50/327,387 = 327,387/x
  3. Step 3: Cross multiply
    211,117.50x = 327,387 × 327,387
  4. Step 4: Simplify right side
    211,117.50x = 107,182,247,769
  5. Step 5: Solve for x
    x = 107,182,247,769/211,117.50
  6. Step 6: Final answer
    x = 507,690.02

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.