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Finding the Fourth Proportional to 64,479.53, 88,990.11 and 36,185.22

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Solution

The fourth proportional to 64,479.53, 88,990.11 and 36,185.22 is: 49,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,479.53 : 88,990.11 = 36,185.22 : x
  2. Step 2: Convert to fraction form
    64,479.53/88,990.11 = 36,185.22/x
  3. Step 3: Cross multiply
    64,479.53x = 88,990.11 × 36,185.22
  4. Step 4: Simplify right side
    64,479.53x = 3,220,126,708.17
  5. Step 5: Solve for x
    x = 3,220,126,708.17/64,479.53
  6. Step 6: Final answer
    x = 49,940.29

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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.