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Finding the Fourth Proportional to 353,886.56, 530,919.76 and 104,568.56

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Solution

The fourth proportional to 353,886.56, 530,919.76 and 104,568.56 is: 156,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,886.56 : 530,919.76 = 104,568.56 : x
  2. Step 2: Convert to fraction form
    353,886.56/530,919.76 = 104,568.56/x
  3. Step 3: Cross multiply
    353,886.56x = 530,919.76 × 104,568.56
  4. Step 4: Simplify right side
    353,886.56x = 55,517,514,778.75
  5. Step 5: Solve for x
    x = 55,517,514,778.75/353,886.56
  6. Step 6: Final answer
    x = 156,879.41

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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.