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Finding the Fourth Proportional to 61,991.93, 93,063.53 and 40,949.96

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Solution

The fourth proportional to 61,991.93, 93,063.53 and 40,949.96 is: 61,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,991.93 : 93,063.53 = 40,949.96 : x
  2. Step 2: Convert to fraction form
    61,991.93/93,063.53 = 40,949.96/x
  3. Step 3: Cross multiply
    61,991.93x = 93,063.53 × 40,949.96
  4. Step 4: Simplify right side
    61,991.93x = 3,810,947,468.02
  5. Step 5: Solve for x
    x = 3,810,947,468.02/61,991.93
  6. Step 6: Final answer
    x = 61,474.89

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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.