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Finding the Fourth Proportional to 101,700.48, 140,317.65 and 58,676.57

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Solution

The fourth proportional to 101,700.48, 140,317.65 and 58,676.57 is: 80,956.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,700.48 : 140,317.65 = 58,676.57 : x
  2. Step 2: Convert to fraction form
    101,700.48/140,317.65 = 58,676.57/x
  3. Step 3: Cross multiply
    101,700.48x = 140,317.65 × 58,676.57
  4. Step 4: Simplify right side
    101,700.48x = 8,233,357,710.87
  5. Step 5: Solve for x
    x = 8,233,357,710.87/101,700.48
  6. Step 6: Final answer
    x = 80,956.92

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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.