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Finding the Fourth Proportional to 163,720.56, 225,932.12 and 92,100.56

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Solution

The fourth proportional to 163,720.56, 225,932.12 and 92,100.56 is: 127,097.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,720.56 : 225,932.12 = 92,100.56 : x
  2. Step 2: Convert to fraction form
    163,720.56/225,932.12 = 92,100.56/x
  3. Step 3: Cross multiply
    163,720.56x = 225,932.12 × 92,100.56
  4. Step 4: Simplify right side
    163,720.56x = 20,808,474,773.99
  5. Step 5: Solve for x
    x = 20,808,474,773.99/163,720.56
  6. Step 6: Final answer
    x = 127,097.51

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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.