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Finding the Fourth Proportional to 63,722.88, 87,950.88 and 43,620.48

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Solution

The fourth proportional to 63,722.88, 87,950.88 and 43,620.48 is: 60,205.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,722.88 : 87,950.88 = 43,620.48 : x
  2. Step 2: Convert to fraction form
    63,722.88/87,950.88 = 43,620.48/x
  3. Step 3: Cross multiply
    63,722.88x = 87,950.88 × 43,620.48
  4. Step 4: Simplify right side
    63,722.88x = 3,836,459,602.02
  5. Step 5: Solve for x
    x = 3,836,459,602.02/63,722.88
  6. Step 6: Final answer
    x = 60,205.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.