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Finding the Fourth Proportional to 111,293.68, 166,731.36 and 55,068.52

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Solution

The fourth proportional to 111,293.68, 166,731.36 and 55,068.52 is: 82,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,293.68 : 166,731.36 = 55,068.52 : x
  2. Step 2: Convert to fraction form
    111,293.68/166,731.36 = 55,068.52/x
  3. Step 3: Cross multiply
    111,293.68x = 166,731.36 × 55,068.52
  4. Step 4: Simplify right side
    111,293.68x = 9,181,649,232.79
  5. Step 5: Solve for x
    x = 9,181,649,232.79/111,293.68
  6. Step 6: Final answer
    x = 82,499.29

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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.