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Finding the Third Proportional to 68,345.50 and 147,923

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Solution

The third proportional to 68,345.50 and 147,923 is: 320,155.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,345.50 : 147,923 = 147,923 : x
  2. Step 2: Convert to fraction form
    68,345.50/147,923 = 147,923/x
  3. Step 3: Cross multiply
    68,345.50x = 147,923 × 147,923
  4. Step 4: Simplify right side
    68,345.50x = 21,881,213,929
  5. Step 5: Solve for x
    x = 21,881,213,929/68,345.50
  6. Step 6: Final answer
    x = 320,155.88

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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.