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Finding the Fourth Proportional to 64,496.64, 96,630.39 and 55,040.70

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Solution

The fourth proportional to 64,496.64, 96,630.39 and 55,040.70 is: 82,463.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,496.64 : 96,630.39 = 55,040.70 : x
  2. Step 2: Convert to fraction form
    64,496.64/96,630.39 = 55,040.70/x
  3. Step 3: Cross multiply
    64,496.64x = 96,630.39 × 55,040.70
  4. Step 4: Simplify right side
    64,496.64x = 5,318,604,306.87
  5. Step 5: Solve for x
    x = 5,318,604,306.87/64,496.64
  6. Step 6: Final answer
    x = 82,463.28

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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.