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Finding the Fourth Proportional to 88,420.32, 132,626.16 and 33,012

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Solution

The fourth proportional to 88,420.32, 132,626.16 and 33,012 is: 49,516.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,420.32 : 132,626.16 = 33,012 : x
  2. Step 2: Convert to fraction form
    88,420.32/132,626.16 = 33,012/x
  3. Step 3: Cross multiply
    88,420.32x = 132,626.16 × 33,012
  4. Step 4: Simplify right side
    88,420.32x = 4,378,254,793.92
  5. Step 5: Solve for x
    x = 4,378,254,793.92/88,420.32
  6. Step 6: Final answer
    x = 49,516.39

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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.