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Finding the Fourth Proportional to 373,508.87, 515,443.86 and 203,746.64

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Solution

The fourth proportional to 373,508.87, 515,443.86 and 203,746.64 is: 281,171.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,508.87 : 515,443.86 = 203,746.64 : x
  2. Step 2: Convert to fraction form
    373,508.87/515,443.86 = 203,746.64/x
  3. Step 3: Cross multiply
    373,508.87x = 515,443.86 × 203,746.64
  4. Step 4: Simplify right side
    373,508.87x = 105,019,952,006.41
  5. Step 5: Solve for x
    x = 105,019,952,006.41/373,508.87
  6. Step 6: Final answer
    x = 281,171.24

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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.