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Finding the Fourth Proportional to 64,356.42, 88,799.19 and 40,469.22

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Solution

The fourth proportional to 64,356.42, 88,799.19 and 40,469.22 is: 55,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,356.42 : 88,799.19 = 40,469.22 : x
  2. Step 2: Convert to fraction form
    64,356.42/88,799.19 = 40,469.22/x
  3. Step 3: Cross multiply
    64,356.42x = 88,799.19 × 40,469.22
  4. Step 4: Simplify right side
    64,356.42x = 3,593,633,955.93
  5. Step 5: Solve for x
    x = 3,593,633,955.93/64,356.42
  6. Step 6: Final answer
    x = 55,839.56

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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.