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Finding the Third Proportional to 75,600 and 111,213

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Solution

The third proportional to 75,600 and 111,213 is: 163,602.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,600 : 111,213 = 111,213 : x
  2. Step 2: Convert to fraction form
    75,600/111,213 = 111,213/x
  3. Step 3: Cross multiply
    75,600x = 111,213 × 111,213
  4. Step 4: Simplify right side
    75,600x = 12,368,331,369
  5. Step 5: Solve for x
    x = 12,368,331,369/75,600
  6. Step 6: Final answer
    x = 163,602.27

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.