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Finding the Fourth Proportional to 101,699.19, 140,349.06 and 58,691.84

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Solution

The fourth proportional to 101,699.19, 140,349.06 and 58,691.84 is: 80,997.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,699.19 : 140,349.06 = 58,691.84 : x
  2. Step 2: Convert to fraction form
    101,699.19/140,349.06 = 58,691.84/x
  3. Step 3: Cross multiply
    101,699.19x = 140,349.06 × 58,691.84
  4. Step 4: Simplify right side
    101,699.19x = 8,237,343,871.93
  5. Step 5: Solve for x
    x = 8,237,343,871.93/101,699.19
  6. Step 6: Final answer
    x = 80,997.14

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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.