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Finding the Fourth Proportional to 352,605.60, 529,135.20 and 194,947.20

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Solution

The fourth proportional to 352,605.60, 529,135.20 and 194,947.20 is: 292,546.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,605.60 : 529,135.20 = 194,947.20 : x
  2. Step 2: Convert to fraction form
    352,605.60/529,135.20 = 194,947.20/x
  3. Step 3: Cross multiply
    352,605.60x = 529,135.20 × 194,947.20
  4. Step 4: Simplify right side
    352,605.60x = 103,153,425,661.44
  5. Step 5: Solve for x
    x = 103,153,425,661.44/352,605.60
  6. Step 6: Final answer
    x = 292,546.19

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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.