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Finding the Third Proportional to 145,419,356 and 318,202,453

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Solution

The third proportional to 145,419,356 and 318,202,453 is: 696,281,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,419,356 : 318,202,453 = 318,202,453 : x
  2. Step 2: Convert to fraction form
    145,419,356/318,202,453 = 318,202,453/x
  3. Step 3: Cross multiply
    145,419,356x = 318,202,453 × 318,202,453
  4. Step 4: Simplify right side
    145,419,356x = 101,252,801,095,217,216
  5. Step 5: Solve for x
    x = 101,252,801,095,217,216/145,419,356
  6. Step 6: Final answer
    x = 696,281,457.16

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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.