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Finding the Fourth Proportional to 99,378.87, 149,083.08 and 32,826.03

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Solution

The fourth proportional to 99,378.87, 149,083.08 and 32,826.03 is: 49,243.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,378.87 : 149,083.08 = 32,826.03 : x
  2. Step 2: Convert to fraction form
    99,378.87/149,083.08 = 32,826.03/x
  3. Step 3: Cross multiply
    99,378.87x = 149,083.08 × 32,826.03
  4. Step 4: Simplify right side
    99,378.87x = 4,893,805,656.57
  5. Step 5: Solve for x
    x = 4,893,805,656.57/99,378.87
  6. Step 6: Final answer
    x = 49,243.93

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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.