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Finding the Fourth Proportional to 167,709.76, 251,389.63 and 67,938.82

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Solution

The fourth proportional to 167,709.76, 251,389.63 and 67,938.82 is: 101,837.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,709.76 : 251,389.63 = 67,938.82 : x
  2. Step 2: Convert to fraction form
    167,709.76/251,389.63 = 67,938.82/x
  3. Step 3: Cross multiply
    167,709.76x = 251,389.63 × 67,938.82
  4. Step 4: Simplify right side
    167,709.76x = 17,079,114,877.63
  5. Step 5: Solve for x
    x = 17,079,114,877.63/167,709.76
  6. Step 6: Final answer
    x = 101,837.33

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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.