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Finding the Fourth Proportional to 123,093.48, 169,869.06 and 66,504.84

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Solution

The fourth proportional to 123,093.48, 169,869.06 and 66,504.84 is: 91,776.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,093.48 : 169,869.06 = 66,504.84 : x
  2. Step 2: Convert to fraction form
    123,093.48/169,869.06 = 66,504.84/x
  3. Step 3: Cross multiply
    123,093.48x = 169,869.06 × 66,504.84
  4. Step 4: Simplify right side
    123,093.48x = 11,297,114,656.25
  5. Step 5: Solve for x
    x = 11,297,114,656.25/123,093.48
  6. Step 6: Final answer
    x = 91,776.71

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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.