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Finding the Third Proportional to 91,520 and 136,477

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Solution

The third proportional to 91,520 and 136,477 is: 203,518.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,520 : 136,477 = 136,477 : x
  2. Step 2: Convert to fraction form
    91,520/136,477 = 136,477/x
  3. Step 3: Cross multiply
    91,520x = 136,477 × 136,477
  4. Step 4: Simplify right side
    91,520x = 18,625,971,529
  5. Step 5: Solve for x
    x = 18,625,971,529/91,520
  6. Step 6: Final answer
    x = 203,518.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.