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Finding the Fourth Proportional to 109,788.67, 151,508.91 and 59,487.67

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Solution

The fourth proportional to 109,788.67, 151,508.91 and 59,487.67 is: 82,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,788.67 : 151,508.91 = 59,487.67 : x
  2. Step 2: Convert to fraction form
    109,788.67/151,508.91 = 59,487.67/x
  3. Step 3: Cross multiply
    109,788.67x = 151,508.91 × 59,487.67
  4. Step 4: Simplify right side
    109,788.67x = 9,012,912,040.14
  5. Step 5: Solve for x
    x = 9,012,912,040.14/109,788.67
  6. Step 6: Final answer
    x = 82,093.28

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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.