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Finding the Fourth Proportional to 167,533.74, 250,939.71 and 78,654.06

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Solution

The fourth proportional to 167,533.74, 250,939.71 and 78,654.06 is: 117,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,533.74 : 250,939.71 = 78,654.06 : x
  2. Step 2: Convert to fraction form
    167,533.74/250,939.71 = 78,654.06/x
  3. Step 3: Cross multiply
    167,533.74x = 250,939.71 × 78,654.06
  4. Step 4: Simplify right side
    167,533.74x = 19,737,427,006.72
  5. Step 5: Solve for x
    x = 19,737,427,006.72/167,533.74
  6. Step 6: Final answer
    x = 117,811.65

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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.