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Finding the Fourth Proportional to 64,198.98, 88,619.22 and 57,472.74

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Solution

The fourth proportional to 64,198.98, 88,619.22 and 57,472.74 is: 79,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,198.98 : 88,619.22 = 57,472.74 : x
  2. Step 2: Convert to fraction form
    64,198.98/88,619.22 = 57,472.74/x
  3. Step 3: Cross multiply
    64,198.98x = 88,619.22 × 57,472.74
  4. Step 4: Simplify right side
    64,198.98x = 5,093,189,390.06
  5. Step 5: Solve for x
    x = 5,093,189,390.06/64,198.98
  6. Step 6: Final answer
    x = 79,334.43

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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.