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Finding the Third Proportional to 201,625,821.38 and 311,392,959.56

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Solution

The third proportional to 201,625,821.38 and 311,392,959.56 is: 480,918,438.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,625,821.38 : 311,392,959.56 = 311,392,959.56 : x
  2. Step 2: Convert to fraction form
    201,625,821.38/311,392,959.56 = 311,392,959.56/x
  3. Step 3: Cross multiply
    201,625,821.38x = 311,392,959.56 × 311,392,959.56
  4. Step 4: Simplify right side
    201,625,821.38x = 96,965,575,265,092,768
  5. Step 5: Solve for x
    x = 96,965,575,265,092,768/201,625,821.38
  6. Step 6: Final answer
    x = 480,918,438.94

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.