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Finding the Fourth Proportional to 167,561.56, 251,360.64 and 72,726.56

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Solution

The fourth proportional to 167,561.56, 251,360.64 and 72,726.56 is: 109,097.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,561.56 : 251,360.64 = 72,726.56 : x
  2. Step 2: Convert to fraction form
    167,561.56/251,360.64 = 72,726.56/x
  3. Step 3: Cross multiply
    167,561.56x = 251,360.64 × 72,726.56
  4. Step 4: Simplify right side
    167,561.56x = 18,280,594,666.60
  5. Step 5: Solve for x
    x = 18,280,594,666.60/167,561.56
  6. Step 6: Final answer
    x = 109,097.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.