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Finding the Fourth Proportional to 66,392.10, 91,619.37 and 36,178.02

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Solution

The fourth proportional to 66,392.10, 91,619.37 and 36,178.02 is: 49,924.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,392.10 : 91,619.37 = 36,178.02 : x
  2. Step 2: Convert to fraction form
    66,392.10/91,619.37 = 36,178.02/x
  3. Step 3: Cross multiply
    66,392.10x = 91,619.37 × 36,178.02
  4. Step 4: Simplify right side
    66,392.10x = 3,314,607,400.25
  5. Step 5: Solve for x
    x = 3,314,607,400.25/66,392.10
  6. Step 6: Final answer
    x = 49,924.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.