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Finding the Fourth Proportional to 101,067.40, 151,601.10 and 54,411.40

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Solution

The fourth proportional to 101,067.40, 151,601.10 and 54,411.40 is: 81,617.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,067.40 : 151,601.10 = 54,411.40 : x
  2. Step 2: Convert to fraction form
    101,067.40/151,601.10 = 54,411.40/x
  3. Step 3: Cross multiply
    101,067.40x = 151,601.10 × 54,411.40
  4. Step 4: Simplify right side
    101,067.40x = 8,248,828,092.54
  5. Step 5: Solve for x
    x = 8,248,828,092.54/101,067.40
  6. Step 6: Final answer
    x = 81,617.10

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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.