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Finding the Fourth Proportional to 167,885.93, 251,916.38 and 74,369.81

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Solution

The fourth proportional to 167,885.93, 251,916.38 and 74,369.81 is: 111,593.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,885.93 : 251,916.38 = 74,369.81 : x
  2. Step 2: Convert to fraction form
    167,885.93/251,916.38 = 74,369.81/x
  3. Step 3: Cross multiply
    167,885.93x = 251,916.38 × 74,369.81
  4. Step 4: Simplify right side
    167,885.93x = 18,734,973,853.32
  5. Step 5: Solve for x
    x = 18,734,973,853.32/167,885.93
  6. Step 6: Final answer
    x = 111,593.47

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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.