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Finding the Fourth Proportional to 101,973.78, 140,707.67 and 58,937.27

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Solution

The fourth proportional to 101,973.78, 140,707.67 and 58,937.27 is: 81,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,973.78 : 140,707.67 = 58,937.27 : x
  2. Step 2: Convert to fraction form
    101,973.78/140,707.67 = 58,937.27/x
  3. Step 3: Cross multiply
    101,973.78x = 140,707.67 × 58,937.27
  4. Step 4: Simplify right side
    101,973.78x = 8,292,924,939.64
  5. Step 5: Solve for x
    x = 8,292,924,939.64/101,973.78
  6. Step 6: Final answer
    x = 81,324.09

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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.