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Finding the Third Proportional to 75,076 and 163,220

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Solution

The third proportional to 75,076 and 163,220 is: 354,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,076 : 163,220 = 163,220 : x
  2. Step 2: Convert to fraction form
    75,076/163,220 = 163,220/x
  3. Step 3: Cross multiply
    75,076x = 163,220 × 163,220
  4. Step 4: Simplify right side
    75,076x = 26,640,768,400
  5. Step 5: Solve for x
    x = 26,640,768,400/75,076
  6. Step 6: Final answer
    x = 354,850.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.