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Finding the Fourth Proportional to 163,791.79, 226,031.93 and 92,173.01

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Solution

The fourth proportional to 163,791.79, 226,031.93 and 92,173.01 is: 127,198.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,791.79 : 226,031.93 = 92,173.01 : x
  2. Step 2: Convert to fraction form
    163,791.79/226,031.93 = 92,173.01/x
  3. Step 3: Cross multiply
    163,791.79x = 226,031.93 × 92,173.01
  4. Step 4: Simplify right side
    163,791.79x = 20,834,042,883.34
  5. Step 5: Solve for x
    x = 20,834,042,883.34/163,791.79
  6. Step 6: Final answer
    x = 127,198.34

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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.