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Finding the Third Proportional to 145,419,372 and 318,202,488

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Solution

The third proportional to 145,419,372 and 318,202,488 is: 696,281,533.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,419,372 : 318,202,488 = 318,202,488 : x
  2. Step 2: Convert to fraction form
    145,419,372/318,202,488 = 318,202,488/x
  3. Step 3: Cross multiply
    145,419,372x = 318,202,488 × 318,202,488
  4. Step 4: Simplify right side
    145,419,372x = 101,252,823,369,390,144
  5. Step 5: Solve for x
    x = 101,252,823,369,390,144/145,419,372
  6. Step 6: Final answer
    x = 696,281,533.72

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