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Finding the Fourth Proportional to 73,826.40, 110,739.60 and 70,910.40

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Solution

The fourth proportional to 73,826.40, 110,739.60 and 70,910.40 is: 106,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,826.40 : 110,739.60 = 70,910.40 : x
  2. Step 2: Convert to fraction form
    73,826.40/110,739.60 = 70,910.40/x
  3. Step 3: Cross multiply
    73,826.40x = 110,739.60 × 70,910.40
  4. Step 4: Simplify right side
    73,826.40x = 7,852,589,331.84
  5. Step 5: Solve for x
    x = 7,852,589,331.84/73,826.40
  6. Step 6: Final answer
    x = 106,365.60

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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.