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Finding the Fourth Proportional to 59,749.72, 89,679.89 and 30,188.30

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Solution

The fourth proportional to 59,749.72, 89,679.89 and 30,188.30 is: 45,310.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,749.72 : 89,679.89 = 30,188.30 : x
  2. Step 2: Convert to fraction form
    59,749.72/89,679.89 = 30,188.30/x
  3. Step 3: Cross multiply
    59,749.72x = 89,679.89 × 30,188.30
  4. Step 4: Simplify right side
    59,749.72x = 2,707,283,050.36
  5. Step 5: Solve for x
    x = 2,707,283,050.36/59,749.72
  6. Step 6: Final answer
    x = 45,310.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.