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Finding the Fourth Proportional to 109,352.96, 150,905.40 and 61,610.84

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Solution

The fourth proportional to 109,352.96, 150,905.40 and 61,610.84 is: 85,022.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,352.96 : 150,905.40 = 61,610.84 : x
  2. Step 2: Convert to fraction form
    109,352.96/150,905.40 = 61,610.84/x
  3. Step 3: Cross multiply
    109,352.96x = 150,905.40 × 61,610.84
  4. Step 4: Simplify right side
    109,352.96x = 9,297,408,454.54
  5. Step 5: Solve for x
    x = 9,297,408,454.54/109,352.96
  6. Step 6: Final answer
    x = 85,022.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.