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Finding the Fourth Proportional to 66,772.13, 100,014.20 and 62,846.46

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Solution

The fourth proportional to 66,772.13, 100,014.20 and 62,846.46 is: 94,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,772.13 : 100,014.20 = 62,846.46 : x
  2. Step 2: Convert to fraction form
    66,772.13/100,014.20 = 62,846.46/x
  3. Step 3: Cross multiply
    66,772.13x = 100,014.20 × 62,846.46
  4. Step 4: Simplify right side
    66,772.13x = 6,285,538,419.73
  5. Step 5: Solve for x
    x = 6,285,538,419.73/66,772.13
  6. Step 6: Final answer
    x = 94,134.16

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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.