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Finding the Fourth Proportional to 353,078.60, 529,844.70 and 195,420.20

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Solution

The fourth proportional to 353,078.60, 529,844.70 and 195,420.20 is: 293,255.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,078.60 : 529,844.70 = 195,420.20 : x
  2. Step 2: Convert to fraction form
    353,078.60/529,844.70 = 195,420.20/x
  3. Step 3: Cross multiply
    353,078.60x = 529,844.70 × 195,420.20
  4. Step 4: Simplify right side
    353,078.60x = 103,542,357,242.94
  5. Step 5: Solve for x
    x = 103,542,357,242.94/353,078.60
  6. Step 6: Final answer
    x = 293,255.83

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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.