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Finding the Third Proportional to 125,518 and 195,700

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Solution

The third proportional to 125,518 and 195,700 is: 305,123.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,518 : 195,700 = 195,700 : x
  2. Step 2: Convert to fraction form
    125,518/195,700 = 195,700/x
  3. Step 3: Cross multiply
    125,518x = 195,700 × 195,700
  4. Step 4: Simplify right side
    125,518x = 38,298,490,000
  5. Step 5: Solve for x
    x = 38,298,490,000/125,518
  6. Step 6: Final answer
    x = 305,123.49

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.