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Finding the Fourth Proportional to 373,569.08, 515,522.90 and 212,424.12

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Solution

The fourth proportional to 373,569.08, 515,522.90 and 212,424.12 is: 293,143.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,569.08 : 515,522.90 = 212,424.12 : x
  2. Step 2: Convert to fraction form
    373,569.08/515,522.90 = 212,424.12/x
  3. Step 3: Cross multiply
    373,569.08x = 515,522.90 × 212,424.12
  4. Step 4: Simplify right side
    373,569.08x = 109,509,498,372.35
  5. Step 5: Solve for x
    x = 109,509,498,372.35/373,569.08
  6. Step 6: Final answer
    x = 293,143.90

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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.