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Finding the Fourth Proportional to 117,562.93, 162,231.41 and 66,574.49

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Solution

The fourth proportional to 117,562.93, 162,231.41 and 66,574.49 is: 91,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,562.93 : 162,231.41 = 66,574.49 : x
  2. Step 2: Convert to fraction form
    117,562.93/162,231.41 = 66,574.49/x
  3. Step 3: Cross multiply
    117,562.93x = 162,231.41 × 66,574.49
  4. Step 4: Simplify right side
    117,562.93x = 10,800,473,382.73
  5. Step 5: Solve for x
    x = 10,800,473,382.73/117,562.93
  6. Step 6: Final answer
    x = 91,869.72

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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.