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Finding the Fourth Proportional to 101,717.62, 140,368.14 and 58,693.74

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Solution

The fourth proportional to 101,717.62, 140,368.14 and 58,693.74 is: 80,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,717.62 : 140,368.14 = 58,693.74 : x
  2. Step 2: Convert to fraction form
    101,717.62/140,368.14 = 58,693.74/x
  3. Step 3: Cross multiply
    101,717.62x = 140,368.14 × 58,693.74
  4. Step 4: Simplify right side
    101,717.62x = 8,238,731,113.44
  5. Step 5: Solve for x
    x = 8,238,731,113.44/101,717.62
  6. Step 6: Final answer
    x = 80,996.11

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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.