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Finding the Third Proportional to 84,154.50 and 181,431

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Solution

The third proportional to 84,154.50 and 181,431 is: 391,152.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,154.50 : 181,431 = 181,431 : x
  2. Step 2: Convert to fraction form
    84,154.50/181,431 = 181,431/x
  3. Step 3: Cross multiply
    84,154.50x = 181,431 × 181,431
  4. Step 4: Simplify right side
    84,154.50x = 32,917,207,761
  5. Step 5: Solve for x
    x = 32,917,207,761/84,154.50
  6. Step 6: Final answer
    x = 391,152.08

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.