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Finding the Fourth Proportional to 373,578.92, 515,517.90 and 212,473.16

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Solution

The fourth proportional to 373,578.92, 515,517.90 and 212,473.16 is: 293,201.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,578.92 : 515,517.90 = 212,473.16 : x
  2. Step 2: Convert to fraction form
    373,578.92/515,517.90 = 212,473.16/x
  3. Step 3: Cross multiply
    373,578.92x = 515,517.90 × 212,473.16
  4. Step 4: Simplify right side
    373,578.92x = 109,533,714,671.98
  5. Step 5: Solve for x
    x = 109,533,714,671.98/373,578.92
  6. Step 6: Final answer
    x = 293,201.01

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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.