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Finding the Fourth Proportional to 278,392.17, 384,182.19 and 151,067.77

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Solution

The fourth proportional to 278,392.17, 384,182.19 and 151,067.77 is: 208,474.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,392.17 : 384,182.19 = 151,067.77 : x
  2. Step 2: Convert to fraction form
    278,392.17/384,182.19 = 151,067.77/x
  3. Step 3: Cross multiply
    278,392.17x = 384,182.19 × 151,067.77
  4. Step 4: Simplify right side
    278,392.17x = 58,037,545,756.56
  5. Step 5: Solve for x
    x = 58,037,545,756.56/278,392.17
  6. Step 6: Final answer
    x = 208,474.06

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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.