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Finding the Third Proportional to 105,988.50 and 142,053.75

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Solution

The third proportional to 105,988.50 and 142,053.75 is: 190,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,988.50 : 142,053.75 = 142,053.75 : x
  2. Step 2: Convert to fraction form
    105,988.50/142,053.75 = 142,053.75/x
  3. Step 3: Cross multiply
    105,988.50x = 142,053.75 × 142,053.75
  4. Step 4: Simplify right side
    105,988.50x = 20,179,267,889.06
  5. Step 5: Solve for x
    x = 20,179,267,889.06/105,988.50
  6. Step 6: Final answer
    x = 190,391.11

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.