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Finding the Third Proportional to 74,686.50 and 163,359

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Solution

The third proportional to 74,686.50 and 163,359 is: 357,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,686.50 : 163,359 = 163,359 : x
  2. Step 2: Convert to fraction form
    74,686.50/163,359 = 163,359/x
  3. Step 3: Cross multiply
    74,686.50x = 163,359 × 163,359
  4. Step 4: Simplify right side
    74,686.50x = 26,686,162,881
  5. Step 5: Solve for x
    x = 26,686,162,881/74,686.50
  6. Step 6: Final answer
    x = 357,309.06

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.