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Finding the Third Proportional to 118,742 and 170,091

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Solution

The third proportional to 118,742 and 170,091 is: 243,645.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,742 : 170,091 = 170,091 : x
  2. Step 2: Convert to fraction form
    118,742/170,091 = 170,091/x
  3. Step 3: Cross multiply
    118,742x = 170,091 × 170,091
  4. Step 4: Simplify right side
    118,742x = 28,930,948,281
  5. Step 5: Solve for x
    x = 28,930,948,281/118,742
  6. Step 6: Final answer
    x = 243,645.45

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.