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Finding the Fourth Proportional to 353,578.92, 530,287.38 and 100,854.60

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Solution

The fourth proportional to 353,578.92, 530,287.38 and 100,854.60 is: 151,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,578.92 : 530,287.38 = 100,854.60 : x
  2. Step 2: Convert to fraction form
    353,578.92/530,287.38 = 100,854.60/x
  3. Step 3: Cross multiply
    353,578.92x = 530,287.38 × 100,854.60
  4. Step 4: Simplify right side
    353,578.92x = 53,481,921,594.95
  5. Step 5: Solve for x
    x = 53,481,921,594.95/353,578.92
  6. Step 6: Final answer
    x = 151,258.80

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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.