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Finding the Fourth Proportional to 101,703.96, 140,358.27 and 58,691.16

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Solution

The fourth proportional to 101,703.96, 140,358.27 and 58,691.16 is: 80,997.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,703.96 : 140,358.27 = 58,691.16 : x
  2. Step 2: Convert to fraction form
    101,703.96/140,358.27 = 58,691.16/x
  3. Step 3: Cross multiply
    101,703.96x = 140,358.27 × 58,691.16
  4. Step 4: Simplify right side
    101,703.96x = 8,237,789,681.89
  5. Step 5: Solve for x
    x = 8,237,789,681.89/101,703.96
  6. Step 6: Final answer
    x = 80,997.73

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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.