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Finding the Fourth Proportional to 110,764.83, 166,129.41 and 39,674.31

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Solution

The fourth proportional to 110,764.83, 166,129.41 and 39,674.31 is: 59,505.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,764.83 : 166,129.41 = 39,674.31 : x
  2. Step 2: Convert to fraction form
    110,764.83/166,129.41 = 39,674.31/x
  3. Step 3: Cross multiply
    110,764.83x = 166,129.41 × 39,674.31
  4. Step 4: Simplify right side
    110,764.83x = 6,591,069,712.46
  5. Step 5: Solve for x
    x = 6,591,069,712.46/110,764.83
  6. Step 6: Final answer
    x = 59,505.08

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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.