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Finding the Fourth Proportional to 64,494.80, 96,742.20 and 44,811.80

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Solution

The fourth proportional to 64,494.80, 96,742.20 and 44,811.80 is: 67,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,494.80 : 96,742.20 = 44,811.80 : x
  2. Step 2: Convert to fraction form
    64,494.80/96,742.20 = 44,811.80/x
  3. Step 3: Cross multiply
    64,494.80x = 96,742.20 × 44,811.80
  4. Step 4: Simplify right side
    64,494.80x = 4,335,192,117.96
  5. Step 5: Solve for x
    x = 4,335,192,117.96/64,494.80
  6. Step 6: Final answer
    x = 67,217.70

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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.