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Finding the Fourth Proportional to 66,014.56, 98,906.64 and 54,992.08

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Solution

The fourth proportional to 66,014.56, 98,906.64 and 54,992.08 is: 82,392.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,014.56 : 98,906.64 = 54,992.08 : x
  2. Step 2: Convert to fraction form
    66,014.56/98,906.64 = 54,992.08/x
  3. Step 3: Cross multiply
    66,014.56x = 98,906.64 × 54,992.08
  4. Step 4: Simplify right side
    66,014.56x = 5,439,081,859.41
  5. Step 5: Solve for x
    x = 5,439,081,859.41/66,014.56
  6. Step 6: Final answer
    x = 82,392.15

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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.