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Finding the Fourth Proportional to 73,873.31, 101,933.28 and 42,042.74

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Solution

The fourth proportional to 73,873.31, 101,933.28 and 42,042.74 is: 58,012.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,873.31 : 101,933.28 = 42,042.74 : x
  2. Step 2: Convert to fraction form
    73,873.31/101,933.28 = 42,042.74/x
  3. Step 3: Cross multiply
    73,873.31x = 101,933.28 × 42,042.74
  4. Step 4: Simplify right side
    73,873.31x = 4,285,553,878.72
  5. Step 5: Solve for x
    x = 4,285,553,878.72/73,873.31
  6. Step 6: Final answer
    x = 58,012.21

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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.