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Finding the Fourth Proportional to 43,691,978.10, 65,579,957.55 and 22,150,902.90

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Solution

The fourth proportional to 43,691,978.10, 65,579,957.55 and 22,150,902.90 is: 33,247,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,691,978.10 : 65,579,957.55 = 22,150,902.90 : x
  2. Step 2: Convert to fraction form
    43,691,978.10/65,579,957.55 = 22,150,902.90/x
  3. Step 3: Cross multiply
    43,691,978.10x = 65,579,957.55 × 22,150,902.90
  4. Step 4: Simplify right side
    43,691,978.10x = 1,452,655,271,876,171.75
  5. Step 5: Solve for x
    x = 1,452,655,271,876,171.75/43,691,978.10
  6. Step 6: Final answer
    x = 33,247,642.59

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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.