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Finding the Fourth Proportional to 67,761.96, 101,608.22 and 28,308.36

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Solution

The fourth proportional to 67,761.96, 101,608.22 and 28,308.36 is: 42,448.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,761.96 : 101,608.22 = 28,308.36 : x
  2. Step 2: Convert to fraction form
    67,761.96/101,608.22 = 28,308.36/x
  3. Step 3: Cross multiply
    67,761.96x = 101,608.22 × 28,308.36
  4. Step 4: Simplify right side
    67,761.96x = 2,876,362,070.72
  5. Step 5: Solve for x
    x = 2,876,362,070.72/67,761.96
  6. Step 6: Final answer
    x = 42,448.04

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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.