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Finding the Fourth Proportional to 73,772.99, 110,553.17 and 42,085.38

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Solution

The fourth proportional to 73,772.99, 110,553.17 and 42,085.38 is: 63,067.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,772.99 : 110,553.17 = 42,085.38 : x
  2. Step 2: Convert to fraction form
    73,772.99/110,553.17 = 42,085.38/x
  3. Step 3: Cross multiply
    73,772.99x = 110,553.17 × 42,085.38
  4. Step 4: Simplify right side
    73,772.99x = 4,652,671,959.23
  5. Step 5: Solve for x
    x = 4,652,671,959.23/73,772.99
  6. Step 6: Final answer
    x = 63,067.42

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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.