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Finding the Fourth Proportional to 283,745.68, 425,622.72 and 84,086.32

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Solution

The fourth proportional to 283,745.68, 425,622.72 and 84,086.32 is: 126,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,745.68 : 425,622.72 = 84,086.32 : x
  2. Step 2: Convert to fraction form
    283,745.68/425,622.72 = 84,086.32/x
  3. Step 3: Cross multiply
    283,745.68x = 425,622.72 × 84,086.32
  4. Step 4: Simplify right side
    283,745.68x = 35,789,048,233.19
  5. Step 5: Solve for x
    x = 35,789,048,233.19/283,745.68
  6. Step 6: Final answer
    x = 126,130.72

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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.