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Finding the Fourth Proportional to 122,608.33, 183,679.22 and 69,857.89

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Solution

The fourth proportional to 122,608.33, 183,679.22 and 69,857.89 is: 104,653.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,608.33 : 183,679.22 = 69,857.89 : x
  2. Step 2: Convert to fraction form
    122,608.33/183,679.22 = 69,857.89/x
  3. Step 3: Cross multiply
    122,608.33x = 183,679.22 × 69,857.89
  4. Step 4: Simplify right side
    122,608.33x = 12,831,442,396.76
  5. Step 5: Solve for x
    x = 12,831,442,396.76/122,608.33
  6. Step 6: Final answer
    x = 104,653.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.