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Finding the Fourth Proportional to 352,805.60, 528,819.60 and 195,147.20

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Solution

The fourth proportional to 352,805.60, 528,819.60 and 195,147.20 is: 292,505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,805.60 : 528,819.60 = 195,147.20 : x
  2. Step 2: Convert to fraction form
    352,805.60/528,819.60 = 195,147.20/x
  3. Step 3: Cross multiply
    352,805.60x = 528,819.60 × 195,147.20
  4. Step 4: Simplify right side
    352,805.60x = 103,197,664,245.12
  5. Step 5: Solve for x
    x = 103,197,664,245.12/352,805.60
  6. Step 6: Final answer
    x = 292,505.74

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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.