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Finding the Fourth Proportional to 66,687.36, 92,036.93 and 43,736.46

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Solution

The fourth proportional to 66,687.36, 92,036.93 and 43,736.46 is: 60,361.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,687.36 : 92,036.93 = 43,736.46 : x
  2. Step 2: Convert to fraction form
    66,687.36/92,036.93 = 43,736.46/x
  3. Step 3: Cross multiply
    66,687.36x = 92,036.93 × 43,736.46
  4. Step 4: Simplify right side
    66,687.36x = 4,025,369,507.47
  5. Step 5: Solve for x
    x = 4,025,369,507.47/66,687.36
  6. Step 6: Final answer
    x = 60,361.81

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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.