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Finding the Fourth Proportional to 120,684.67, 166,548.66 and 69,696.48

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Solution

The fourth proportional to 120,684.67, 166,548.66 and 69,696.48 is: 96,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,684.67 : 166,548.66 = 69,696.48 : x
  2. Step 2: Convert to fraction form
    120,684.67/166,548.66 = 69,696.48/x
  3. Step 3: Cross multiply
    120,684.67x = 166,548.66 × 69,696.48
  4. Step 4: Simplify right side
    120,684.67x = 11,607,855,365.14
  5. Step 5: Solve for x
    x = 11,607,855,365.14/120,684.67
  6. Step 6: Final answer
    x = 96,183.35

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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.