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Finding the Third Proportional to 61,782 and 132,312

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Solution

The third proportional to 61,782 and 132,312 is: 283,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,782 : 132,312 = 132,312 : x
  2. Step 2: Convert to fraction form
    61,782/132,312 = 132,312/x
  3. Step 3: Cross multiply
    61,782x = 132,312 × 132,312
  4. Step 4: Simplify right side
    61,782x = 17,506,465,344
  5. Step 5: Solve for x
    x = 17,506,465,344/61,782
  6. Step 6: Final answer
    x = 283,358.67

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.