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Finding the Fourth Proportional to 108,379.28, 162,509.52 and 33,479.12

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Solution

The fourth proportional to 108,379.28, 162,509.52 and 33,479.12 is: 50,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,379.28 : 162,509.52 = 33,479.12 : x
  2. Step 2: Convert to fraction form
    108,379.28/162,509.52 = 33,479.12/x
  3. Step 3: Cross multiply
    108,379.28x = 162,509.52 × 33,479.12
  4. Step 4: Simplify right side
    108,379.28x = 5,440,675,721.22
  5. Step 5: Solve for x
    x = 5,440,675,721.22/108,379.28
  6. Step 6: Final answer
    x = 50,200.33

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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.