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Finding the Fourth Proportional to 376,165.01, 519,107.69 and 215,023.51

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Solution

The fourth proportional to 376,165.01, 519,107.69 and 215,023.51 is: 296,732.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,165.01 : 519,107.69 = 215,023.51 : x
  2. Step 2: Convert to fraction form
    376,165.01/519,107.69 = 215,023.51/x
  3. Step 3: Cross multiply
    376,165.01x = 519,107.69 × 215,023.51
  4. Step 4: Simplify right side
    376,165.01x = 111,620,357,548.73
  5. Step 5: Solve for x
    x = 111,620,357,548.73/376,165.01
  6. Step 6: Final answer
    x = 296,732.43

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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.