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Finding the Fourth Proportional to 303,566,918.19, 418,922,488.17 and 164,337,679.97

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Solution

The fourth proportional to 303,566,918.19, 418,922,488.17 and 164,337,679.97 is: 226,786,074.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,566,918.19 : 418,922,488.17 = 164,337,679.97 : x
  2. Step 2: Convert to fraction form
    303,566,918.19/418,922,488.17 = 164,337,679.97/x
  3. Step 3: Cross multiply
    303,566,918.19x = 418,922,488.17 × 164,337,679.97
  4. Step 4: Simplify right side
    303,566,918.19x = 68,844,749,793,117,576
  5. Step 5: Solve for x
    x = 68,844,749,793,117,576/303,566,918.19
  6. Step 6: Final answer
    x = 226,786,074.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.