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Finding the Third Proportional to 69,921 and 110,772

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Solution

The third proportional to 69,921 and 110,772 is: 175,490.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921 : 110,772 = 110,772 : x
  2. Step 2: Convert to fraction form
    69,921/110,772 = 110,772/x
  3. Step 3: Cross multiply
    69,921x = 110,772 × 110,772
  4. Step 4: Simplify right side
    69,921x = 12,270,435,984
  5. Step 5: Solve for x
    x = 12,270,435,984/69,921
  6. Step 6: Final answer
    x = 175,490.00

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.