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Finding the Third Proportional to 91,248 and 141,228

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Solution

The third proportional to 91,248 and 141,228 is: 218,583.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,248 : 141,228 = 141,228 : x
  2. Step 2: Convert to fraction form
    91,248/141,228 = 141,228/x
  3. Step 3: Cross multiply
    91,248x = 141,228 × 141,228
  4. Step 4: Simplify right side
    91,248x = 19,945,347,984
  5. Step 5: Solve for x
    x = 19,945,347,984/91,248
  6. Step 6: Final answer
    x = 218,583.95

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.