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Finding the Fourth Proportional to 122,728.52, 183,942.12 and 63,530.48

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Solution

The fourth proportional to 122,728.52, 183,942.12 and 63,530.48 is: 95,217.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,728.52 : 183,942.12 = 63,530.48 : x
  2. Step 2: Convert to fraction form
    122,728.52/183,942.12 = 63,530.48/x
  3. Step 3: Cross multiply
    122,728.52x = 183,942.12 × 63,530.48
  4. Step 4: Simplify right side
    122,728.52x = 11,685,931,175.82
  5. Step 5: Solve for x
    x = 11,685,931,175.82/122,728.52
  6. Step 6: Final answer
    x = 95,217.73

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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.