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Finding the Fourth Proportional to 274,067.64, 378,055.62 and 160,868.52

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Solution

The fourth proportional to 274,067.64, 378,055.62 and 160,868.52 is: 221,905.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,067.64 : 378,055.62 = 160,868.52 : x
  2. Step 2: Convert to fraction form
    274,067.64/378,055.62 = 160,868.52/x
  3. Step 3: Cross multiply
    274,067.64x = 378,055.62 × 160,868.52
  4. Step 4: Simplify right side
    274,067.64x = 60,817,248,067.08
  5. Step 5: Solve for x
    x = 60,817,248,067.08/274,067.64
  6. Step 6: Final answer
    x = 221,905.98

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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.