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Finding the Fourth Proportional to 339,151.89, 468,031.41 and 211,901.28

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Solution

The fourth proportional to 339,151.89, 468,031.41 and 211,901.28 is: 292,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,151.89 : 468,031.41 = 211,901.28 : x
  2. Step 2: Convert to fraction form
    339,151.89/468,031.41 = 211,901.28/x
  3. Step 3: Cross multiply
    339,151.89x = 468,031.41 × 211,901.28
  4. Step 4: Simplify right side
    339,151.89x = 99,176,454,859.20
  5. Step 5: Solve for x
    x = 99,176,454,859.20/339,151.89
  6. Step 6: Final answer
    x = 292,424.89

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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.