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Finding the Fourth Proportional to 117,235.48, 161,796.54 and 66,942.04

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Solution

The fourth proportional to 117,235.48, 161,796.54 and 66,942.04 is: 92,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,235.48 : 161,796.54 = 66,942.04 : x
  2. Step 2: Convert to fraction form
    117,235.48/161,796.54 = 66,942.04/x
  3. Step 3: Cross multiply
    117,235.48x = 161,796.54 × 66,942.04
  4. Step 4: Simplify right side
    117,235.48x = 10,830,990,452.54
  5. Step 5: Solve for x
    x = 10,830,990,452.54/117,235.48
  6. Step 6: Final answer
    x = 92,386.63

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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.