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Finding the Fourth Proportional to 373,458.94, 515,379.48 and 203,693.06

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Solution

The fourth proportional to 373,458.94, 515,379.48 and 203,693.06 is: 281,099.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,458.94 : 515,379.48 = 203,693.06 : x
  2. Step 2: Convert to fraction form
    373,458.94/515,379.48 = 203,693.06/x
  3. Step 3: Cross multiply
    373,458.94x = 515,379.48 × 203,693.06
  4. Step 4: Simplify right side
    373,458.94x = 104,979,223,867.01
  5. Step 5: Solve for x
    x = 104,979,223,867.01/373,458.94
  6. Step 6: Final answer
    x = 281,099.78

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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.