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Finding the Fourth Proportional to 123,055.92, 169,817.28 and 66,467.30

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Solution

The fourth proportional to 123,055.92, 169,817.28 and 66,467.30 is: 91,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,055.92 : 169,817.28 = 66,467.30 : x
  2. Step 2: Convert to fraction form
    123,055.92/169,817.28 = 66,467.30/x
  3. Step 3: Cross multiply
    123,055.92x = 169,817.28 × 66,467.30
  4. Step 4: Simplify right side
    123,055.92x = 11,287,295,245.86
  5. Step 5: Solve for x
    x = 11,287,295,245.86/123,055.92
  6. Step 6: Final answer
    x = 91,724.93

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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.