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Finding the Fourth Proportional to 101,910.81, 152,699.74 and 61,942.02

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Solution

The fourth proportional to 101,910.81, 152,699.74 and 61,942.02 is: 92,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,910.81 : 152,699.74 = 61,942.02 : x
  2. Step 2: Convert to fraction form
    101,910.81/152,699.74 = 61,942.02/x
  3. Step 3: Cross multiply
    101,910.81x = 152,699.74 × 61,942.02
  4. Step 4: Simplify right side
    101,910.81x = 9,458,530,349.07
  5. Step 5: Solve for x
    x = 9,458,530,349.07/101,910.81
  6. Step 6: Final answer
    x = 92,811.85

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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.