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Finding the Fourth Proportional to 165,768.87, 248,653.08 and 76,973.82

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Solution

The fourth proportional to 165,768.87, 248,653.08 and 76,973.82 is: 115,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,768.87 : 248,653.08 = 76,973.82 : x
  2. Step 2: Convert to fraction form
    165,768.87/248,653.08 = 76,973.82/x
  3. Step 3: Cross multiply
    165,768.87x = 248,653.08 × 76,973.82
  4. Step 4: Simplify right side
    165,768.87x = 19,139,777,422.37
  5. Step 5: Solve for x
    x = 19,139,777,422.37/165,768.87
  6. Step 6: Final answer
    x = 115,460.63

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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.