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Finding the Fourth Proportional to 171,944.52, 257,833.81 and 72,077.89

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Solution

The fourth proportional to 171,944.52, 257,833.81 and 72,077.89 is: 108,082.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,944.52 : 257,833.81 = 72,077.89 : x
  2. Step 2: Convert to fraction form
    171,944.52/257,833.81 = 72,077.89/x
  3. Step 3: Cross multiply
    171,944.52x = 257,833.81 × 72,077.89
  4. Step 4: Simplify right side
    171,944.52x = 18,584,116,995.46
  5. Step 5: Solve for x
    x = 18,584,116,995.46/171,944.52
  6. Step 6: Final answer
    x = 108,082.05

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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.