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Finding the Fourth Proportional to 165,772.87, 248,659.08 and 76,977.82

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Solution

The fourth proportional to 165,772.87, 248,659.08 and 76,977.82 is: 115,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,772.87 : 248,659.08 = 76,977.82 : x
  2. Step 2: Convert to fraction form
    165,772.87/248,659.08 = 76,977.82/x
  3. Step 3: Cross multiply
    165,772.87x = 248,659.08 × 76,977.82
  4. Step 4: Simplify right side
    165,772.87x = 19,141,233,901.61
  5. Step 5: Solve for x
    x = 19,141,233,901.61/165,772.87
  6. Step 6: Final answer
    x = 115,466.63

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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.