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Finding the Third Proportional to 145,419,364 and 318,202,469

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Solution

The third proportional to 145,419,364 and 318,202,469 is: 696,281,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,419,364 : 318,202,469 = 318,202,469 : x
  2. Step 2: Convert to fraction form
    145,419,364/318,202,469 = 318,202,469/x
  3. Step 3: Cross multiply
    145,419,364x = 318,202,469 × 318,202,469
  4. Step 4: Simplify right side
    145,419,364x = 101,252,811,277,695,968
  5. Step 5: Solve for x
    x = 101,252,811,277,695,968/145,419,364
  6. Step 6: Final answer
    x = 696,281,488.88

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.