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Finding the Fourth Proportional to 163,750.63, 225,976.80 and 92,131.87

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Solution

The fourth proportional to 163,750.63, 225,976.80 and 92,131.87 is: 127,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,750.63 : 225,976.80 = 92,131.87 : x
  2. Step 2: Convert to fraction form
    163,750.63/225,976.80 = 92,131.87/x
  3. Step 3: Cross multiply
    163,750.63x = 225,976.80 × 92,131.87
  4. Step 4: Simplify right side
    163,750.63x = 20,819,665,160.62
  5. Step 5: Solve for x
    x = 20,819,665,160.62/163,750.63
  6. Step 6: Final answer
    x = 127,142.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.