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Finding the Fourth Proportional to 99,952.50, 149,928.77 and 26,080.50

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Solution

The fourth proportional to 99,952.50, 149,928.77 and 26,080.50 is: 39,120.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,952.50 : 149,928.77 = 26,080.50 : x
  2. Step 2: Convert to fraction form
    99,952.50/149,928.77 = 26,080.50/x
  3. Step 3: Cross multiply
    99,952.50x = 149,928.77 × 26,080.50
  4. Step 4: Simplify right side
    99,952.50x = 3,910,217,351.19
  5. Step 5: Solve for x
    x = 3,910,217,351.19/99,952.50
  6. Step 6: Final answer
    x = 39,120.76

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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.