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Finding the Fourth Proportional to 110,619.60, 166,015.80 and 51,462.60

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Solution

The fourth proportional to 110,619.60, 166,015.80 and 51,462.60 is: 77,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,619.60 : 166,015.80 = 51,462.60 : x
  2. Step 2: Convert to fraction form
    110,619.60/166,015.80 = 51,462.60/x
  3. Step 3: Cross multiply
    110,619.60x = 166,015.80 × 51,462.60
  4. Step 4: Simplify right side
    110,619.60x = 8,543,604,709.08
  5. Step 5: Solve for x
    x = 8,543,604,709.08/110,619.60
  6. Step 6: Final answer
    x = 77,234.10

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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.