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Finding the Fourth Proportional to 373,587.60, 515,550.30 and 203,821.74

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Solution

The fourth proportional to 373,587.60, 515,550.30 and 203,821.74 is: 281,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,587.60 : 515,550.30 = 203,821.74 : x
  2. Step 2: Convert to fraction form
    373,587.60/515,550.30 = 203,821.74/x
  3. Step 3: Cross multiply
    373,587.60x = 515,550.30 × 203,821.74
  4. Step 4: Simplify right side
    373,587.60x = 105,080,359,203.52
  5. Step 5: Solve for x
    x = 105,080,359,203.52/373,587.60
  6. Step 6: Final answer
    x = 281,273.68

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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.