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Finding the Fourth Proportional to 64,496.89, 96,630.76 and 55,040.95

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Solution

The fourth proportional to 64,496.89, 96,630.76 and 55,040.95 is: 82,463.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,496.89 : 96,630.76 = 55,040.95 : x
  2. Step 2: Convert to fraction form
    64,496.89/96,630.76 = 55,040.95/x
  3. Step 3: Cross multiply
    64,496.89x = 96,630.76 × 55,040.95
  4. Step 4: Simplify right side
    64,496.89x = 5,318,648,829.62
  5. Step 5: Solve for x
    x = 5,318,648,829.62/64,496.89
  6. Step 6: Final answer
    x = 82,463.65

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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.