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Finding the Fourth Proportional to 123,357.44, 170,233.08 and 66,769.04

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Solution

The fourth proportional to 123,357.44, 170,233.08 and 66,769.04 is: 92,141.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,357.44 : 170,233.08 = 66,769.04 : x
  2. Step 2: Convert to fraction form
    123,357.44/170,233.08 = 66,769.04/x
  3. Step 3: Cross multiply
    123,357.44x = 170,233.08 × 66,769.04
  4. Step 4: Simplify right side
    123,357.44x = 11,366,299,327.84
  5. Step 5: Solve for x
    x = 11,366,299,327.84/123,357.44
  6. Step 6: Final answer
    x = 92,141.17

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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.