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Finding the Third Proportional to 141,316 and 212,277

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Solution

The third proportional to 141,316 and 212,277 is: 318,870.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,316 : 212,277 = 212,277 : x
  2. Step 2: Convert to fraction form
    141,316/212,277 = 212,277/x
  3. Step 3: Cross multiply
    141,316x = 212,277 × 212,277
  4. Step 4: Simplify right side
    141,316x = 45,061,524,729
  5. Step 5: Solve for x
    x = 45,061,524,729/141,316
  6. Step 6: Final answer
    x = 318,870.65

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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.