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Finding the Fourth Proportional to 123,115.64, 184,607.82 and 63,891.68

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Solution

The fourth proportional to 123,115.64, 184,607.82 and 63,891.68 is: 95,803.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,115.64 : 184,607.82 = 63,891.68 : x
  2. Step 2: Convert to fraction form
    123,115.64/184,607.82 = 63,891.68/x
  3. Step 3: Cross multiply
    123,115.64x = 184,607.82 × 63,891.68
  4. Step 4: Simplify right side
    123,115.64x = 11,794,903,760.94
  5. Step 5: Solve for x
    x = 11,794,903,760.94/123,115.64
  6. Step 6: Final answer
    x = 95,803.46

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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.