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Finding the Third Proportional to 203,755,164.19 and 317,739,646.69

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Solution

The third proportional to 203,755,164.19 and 317,739,646.69 is: 495,489,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,755,164.19 : 317,739,646.69 = 317,739,646.69 : x
  2. Step 2: Convert to fraction form
    203,755,164.19/317,739,646.69 = 317,739,646.69/x
  3. Step 3: Cross multiply
    203,755,164.19x = 317,739,646.69 × 317,739,646.69
  4. Step 4: Simplify right side
    203,755,164.19x = 100,958,483,077,097,328
  5. Step 5: Solve for x
    x = 100,958,483,077,097,328/203,755,164.19
  6. Step 6: Final answer
    x = 495,489,198.91

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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.