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Finding the Third Proportional to 121,570.88 and 195,330.38

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Solution

The third proportional to 121,570.88 and 195,330.38 is: 313,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,570.88 : 195,330.38 = 195,330.38 : x
  2. Step 2: Convert to fraction form
    121,570.88/195,330.38 = 195,330.38/x
  3. Step 3: Cross multiply
    121,570.88x = 195,330.38 × 195,330.38
  4. Step 4: Simplify right side
    121,570.88x = 38,153,955,397.64
  5. Step 5: Solve for x
    x = 38,153,955,397.64/121,570.88
  6. Step 6: Final answer
    x = 313,841.25

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.