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Finding the Fourth Proportional to 82,847.20, 124,270.80 and 70,016.80

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Solution

The fourth proportional to 82,847.20, 124,270.80 and 70,016.80 is: 105,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,847.20 : 124,270.80 = 70,016.80 : x
  2. Step 2: Convert to fraction form
    82,847.20/124,270.80 = 70,016.80/x
  3. Step 3: Cross multiply
    82,847.20x = 124,270.80 × 70,016.80
  4. Step 4: Simplify right side
    82,847.20x = 8,701,043,749.44
  5. Step 5: Solve for x
    x = 8,701,043,749.44/82,847.20
  6. Step 6: Final answer
    x = 105,025.20

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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.