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Finding the Fourth Proportional to 159,980.64, 220,800.24 and 92,951.52

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Solution

The fourth proportional to 159,980.64, 220,800.24 and 92,951.52 is: 128,288.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,980.64 : 220,800.24 = 92,951.52 : x
  2. Step 2: Convert to fraction form
    159,980.64/220,800.24 = 92,951.52/x
  3. Step 3: Cross multiply
    159,980.64x = 220,800.24 × 92,951.52
  4. Step 4: Simplify right side
    159,980.64x = 20,523,717,924.36
  5. Step 5: Solve for x
    x = 20,523,717,924.36/159,980.64
  6. Step 6: Final answer
    x = 128,288.76

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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.