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Finding the Fourth Proportional to 64,392.66, 88,905.02 and 40,230.41

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Solution

The fourth proportional to 64,392.66, 88,905.02 and 40,230.41 is: 55,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,392.66 : 88,905.02 = 40,230.41 : x
  2. Step 2: Convert to fraction form
    64,392.66/88,905.02 = 40,230.41/x
  3. Step 3: Cross multiply
    64,392.66x = 88,905.02 × 40,230.41
  4. Step 4: Simplify right side
    64,392.66x = 3,576,684,759.98
  5. Step 5: Solve for x
    x = 3,576,684,759.98/64,392.66
  6. Step 6: Final answer
    x = 55,544.91

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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.