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Finding the Third Proportional to 74,254 and 163,210

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Solution

The third proportional to 74,254 and 163,210 is: 358,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,254 : 163,210 = 163,210 : x
  2. Step 2: Convert to fraction form
    74,254/163,210 = 163,210/x
  3. Step 3: Cross multiply
    74,254x = 163,210 × 163,210
  4. Step 4: Simplify right side
    74,254x = 26,637,504,100
  5. Step 5: Solve for x
    x = 26,637,504,100/74,254
  6. Step 6: Final answer
    x = 358,734.94

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.