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Finding the Fourth Proportional to 123,092.48, 169,867.68 and 66,503.84

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Solution

The fourth proportional to 123,092.48, 169,867.68 and 66,503.84 is: 91,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,092.48 : 169,867.68 = 66,503.84 : x
  2. Step 2: Convert to fraction form
    123,092.48/169,867.68 = 66,503.84/x
  3. Step 3: Cross multiply
    123,092.48x = 169,867.68 × 66,503.84
  4. Step 4: Simplify right side
    123,092.48x = 11,296,853,011.89
  5. Step 5: Solve for x
    x = 11,296,853,011.89/123,092.48
  6. Step 6: Final answer
    x = 91,775.33

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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.