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Finding the Fourth Proportional to 123,187.44, 169,998.66 and 66,598.82

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Solution

The fourth proportional to 123,187.44, 169,998.66 and 66,598.82 is: 91,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,187.44 : 169,998.66 = 66,598.82 : x
  2. Step 2: Convert to fraction form
    123,187.44/169,998.66 = 66,598.82/x
  3. Step 3: Cross multiply
    123,187.44x = 169,998.66 × 66,598.82
  4. Step 4: Simplify right side
    123,187.44x = 11,321,710,157.58
  5. Step 5: Solve for x
    x = 11,321,710,157.58/123,187.44
  6. Step 6: Final answer
    x = 91,906.37

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1.5x scale

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.