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Finding the Fourth Proportional to 110,779, 166,207.36 and 69,177.40

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Solution

The fourth proportional to 110,779, 166,207.36 and 69,177.40 is: 103,790.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,779 : 166,207.36 = 69,177.40 : x
  2. Step 2: Convert to fraction form
    110,779/166,207.36 = 69,177.40/x
  3. Step 3: Cross multiply
    110,779x = 166,207.36 × 69,177.40
  4. Step 4: Simplify right side
    110,779x = 11,497,793,025.66
  5. Step 5: Solve for x
    x = 11,497,793,025.66/110,779
  6. Step 6: Final answer
    x = 103,790.37

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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.