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Finding the Fourth Proportional to 61,993.97, 92,901.20 and 42,739.96

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Solution

The fourth proportional to 61,993.97, 92,901.20 and 42,739.96 is: 64,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,993.97 : 92,901.20 = 42,739.96 : x
  2. Step 2: Convert to fraction form
    61,993.97/92,901.20 = 42,739.96/x
  3. Step 3: Cross multiply
    61,993.97x = 92,901.20 × 42,739.96
  4. Step 4: Simplify right side
    61,993.97x = 3,970,593,107.45
  5. Step 5: Solve for x
    x = 3,970,593,107.45/61,993.97
  6. Step 6: Final answer
    x = 64,048.06

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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.