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Finding the Fourth Proportional to 122,290.59, 168,757.49 and 74,526.51

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Solution

The fourth proportional to 122,290.59, 168,757.49 and 74,526.51 is: 102,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,290.59 : 168,757.49 = 74,526.51 : x
  2. Step 2: Convert to fraction form
    122,290.59/168,757.49 = 74,526.51/x
  3. Step 3: Cross multiply
    122,290.59x = 168,757.49 × 74,526.51
  4. Step 4: Simplify right side
    122,290.59x = 12,576,906,952.38
  5. Step 5: Solve for x
    x = 12,576,906,952.38/122,290.59
  6. Step 6: Final answer
    x = 102,844.44

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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.