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Finding the Third Proportional to 188,210 and 402,292

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Solution

The third proportional to 188,210 and 402,292 is: 859,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,210 : 402,292 = 402,292 : x
  2. Step 2: Convert to fraction form
    188,210/402,292 = 402,292/x
  3. Step 3: Cross multiply
    188,210x = 402,292 × 402,292
  4. Step 4: Simplify right side
    188,210x = 161,838,853,264
  5. Step 5: Solve for x
    x = 161,838,853,264/188,210
  6. Step 6: Final answer
    x = 859,884.45

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.