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Finding the Fourth Proportional to 167,389.76, 251,093.28 and 42,731.84

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Solution

The fourth proportional to 167,389.76, 251,093.28 and 42,731.84 is: 64,099.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,389.76 : 251,093.28 = 42,731.84 : x
  2. Step 2: Convert to fraction form
    167,389.76/251,093.28 = 42,731.84/x
  3. Step 3: Cross multiply
    167,389.76x = 251,093.28 × 42,731.84
  4. Step 4: Simplify right side
    167,389.76x = 10,729,677,866.04
  5. Step 5: Solve for x
    x = 10,729,677,866.04/167,389.76
  6. Step 6: Final answer
    x = 64,099.97

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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.