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Finding the Third Proportional to 60,208 and 90,312

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Solution

The third proportional to 60,208 and 90,312 is: 135,468

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,208 : 90,312 = 90,312 : x
  2. Step 2: Convert to fraction form
    60,208/90,312 = 90,312/x
  3. Step 3: Cross multiply
    60,208x = 90,312 × 90,312
  4. Step 4: Simplify right side
    60,208x = 8,156,257,344
  5. Step 5: Solve for x
    x = 8,156,257,344/60,208
  6. Step 6: Final answer
    x = 135,468

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.