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Finding the Third Proportional to 63,597.50 and 138,121

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Solution

The third proportional to 63,597.50 and 138,121 is: 299,971.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,597.50 : 138,121 = 138,121 : x
  2. Step 2: Convert to fraction form
    63,597.50/138,121 = 138,121/x
  3. Step 3: Cross multiply
    63,597.50x = 138,121 × 138,121
  4. Step 4: Simplify right side
    63,597.50x = 19,077,410,641
  5. Step 5: Solve for x
    x = 19,077,410,641/63,597.50
  6. Step 6: Final answer
    x = 299,971.08

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.