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Finding the Third Proportional to 92,220 and 201,432

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Solution

The third proportional to 92,220 and 201,432 is: 439,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,220 : 201,432 = 201,432 : x
  2. Step 2: Convert to fraction form
    92,220/201,432 = 201,432/x
  3. Step 3: Cross multiply
    92,220x = 201,432 × 201,432
  4. Step 4: Simplify right side
    92,220x = 40,574,850,624
  5. Step 5: Solve for x
    x = 40,574,850,624/92,220
  6. Step 6: Final answer
    x = 439,978.86

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.