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Finding the Fourth Proportional to 373,296.60, 515,140.56 and 203,530.32

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Solution

The fourth proportional to 373,296.60, 515,140.56 and 203,530.32 is: 280,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,296.60 : 515,140.56 = 203,530.32 : x
  2. Step 2: Convert to fraction form
    373,296.60/515,140.56 = 203,530.32/x
  3. Step 3: Cross multiply
    373,296.60x = 515,140.56 × 203,530.32
  4. Step 4: Simplify right side
    373,296.60x = 104,846,723,021.78
  5. Step 5: Solve for x
    x = 104,846,723,021.78/373,296.60
  6. Step 6: Final answer
    x = 280,867.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.