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Finding the Fourth Proportional to 167,533.51, 250,939.39 and 78,653.83

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Solution

The fourth proportional to 167,533.51, 250,939.39 and 78,653.83 is: 117,811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,533.51 : 250,939.39 = 78,653.83 : x
  2. Step 2: Convert to fraction form
    167,533.51/250,939.39 = 78,653.83/x
  3. Step 3: Cross multiply
    167,533.51x = 250,939.39 × 78,653.83
  4. Step 4: Simplify right side
    167,533.51x = 19,737,344,121.36
  5. Step 5: Solve for x
    x = 19,737,344,121.36/167,533.51
  6. Step 6: Final answer
    x = 117,811.32

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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.