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Finding the Fourth Proportional to 341,726.98, 512,398.47 and 141,912.94

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Solution

The fourth proportional to 341,726.98, 512,398.47 and 141,912.94 is: 212,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,726.98 : 512,398.47 = 141,912.94 : x
  2. Step 2: Convert to fraction form
    341,726.98/512,398.47 = 141,912.94/x
  3. Step 3: Cross multiply
    341,726.98x = 512,398.47 × 141,912.94
  4. Step 4: Simplify right side
    341,726.98x = 72,715,973,329.20
  5. Step 5: Solve for x
    x = 72,715,973,329.20/341,726.98
  6. Step 6: Final answer
    x = 212,789.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.