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Finding the Fourth Proportional to 99,958.56, 149,863.77 and 60,506.34

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Solution

The fourth proportional to 99,958.56, 149,863.77 and 60,506.34 is: 90,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,958.56 : 149,863.77 = 60,506.34 : x
  2. Step 2: Convert to fraction form
    99,958.56/149,863.77 = 60,506.34/x
  3. Step 3: Cross multiply
    99,958.56x = 149,863.77 × 60,506.34
  4. Step 4: Simplify right side
    99,958.56x = 9,067,708,221.30
  5. Step 5: Solve for x
    x = 9,067,708,221.30/99,958.56
  6. Step 6: Final answer
    x = 90,714.67

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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.