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Finding the Fourth Proportional to 123,448.48, 170,359.04 and 66,859.92

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Solution

The fourth proportional to 123,448.48, 170,359.04 and 66,859.92 is: 92,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,448.48 : 170,359.04 = 66,859.92 : x
  2. Step 2: Convert to fraction form
    123,448.48/170,359.04 = 66,859.92/x
  3. Step 3: Cross multiply
    123,448.48x = 170,359.04 × 66,859.92
  4. Step 4: Simplify right side
    123,448.48x = 11,390,191,785.68
  5. Step 5: Solve for x
    x = 11,390,191,785.68/123,448.48
  6. Step 6: Final answer
    x = 92,266.76

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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.