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Finding the Fourth Proportional to 64,447.98, 96,820.20 and 45,773.46

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Solution

The fourth proportional to 64,447.98, 96,820.20 and 45,773.46 is: 68,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,447.98 : 96,820.20 = 45,773.46 : x
  2. Step 2: Convert to fraction form
    64,447.98/96,820.20 = 45,773.46/x
  3. Step 3: Cross multiply
    64,447.98x = 96,820.20 × 45,773.46
  4. Step 4: Simplify right side
    64,447.98x = 4,431,795,551.89
  5. Step 5: Solve for x
    x = 4,431,795,551.89/64,447.98
  6. Step 6: Final answer
    x = 68,765.47

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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.