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Finding the Fourth Proportional to 99,913.60, 149,856.72 and 33,352.21

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Solution

The fourth proportional to 99,913.60, 149,856.72 and 33,352.21 is: 50,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,913.60 : 149,856.72 = 33,352.21 : x
  2. Step 2: Convert to fraction form
    99,913.60/149,856.72 = 33,352.21/x
  3. Step 3: Cross multiply
    99,913.60x = 149,856.72 × 33,352.21
  4. Step 4: Simplify right side
    99,913.60x = 4,998,052,795.35
  5. Step 5: Solve for x
    x = 4,998,052,795.35/99,913.60
  6. Step 6: Final answer
    x = 50,023.75

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1.5x scale

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.