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Finding the Fourth Proportional to 372,993.58, 514,732.28 and 211,849.95

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Solution

The fourth proportional to 372,993.58, 514,732.28 and 211,849.95 is: 292,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,993.58 : 514,732.28 = 211,849.95 : x
  2. Step 2: Convert to fraction form
    372,993.58/514,732.28 = 211,849.95/x
  3. Step 3: Cross multiply
    372,993.58x = 514,732.28 × 211,849.95
  4. Step 4: Simplify right side
    372,993.58x = 109,046,007,781.39
  5. Step 5: Solve for x
    x = 109,046,007,781.39/372,993.58
  6. Step 6: Final answer
    x = 292,353.58

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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.