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Finding the Fourth Proportional to 61,530.99, 92,231.69 and 31,917.39

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Solution

The fourth proportional to 61,530.99, 92,231.69 and 31,917.39 is: 47,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,530.99 : 92,231.69 = 31,917.39 : x
  2. Step 2: Convert to fraction form
    61,530.99/92,231.69 = 31,917.39/x
  3. Step 3: Cross multiply
    61,530.99x = 92,231.69 × 31,917.39
  4. Step 4: Simplify right side
    61,530.99x = 2,943,794,660.50
  5. Step 5: Solve for x
    x = 2,943,794,660.50/61,530.99
  6. Step 6: Final answer
    x = 47,842.47

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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.