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Finding the Fourth Proportional to 373,646.61, 515,643.68 and 212,524.83

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Solution

The fourth proportional to 373,646.61, 515,643.68 and 212,524.83 is: 293,290.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,646.61 : 515,643.68 = 212,524.83 : x
  2. Step 2: Convert to fraction form
    373,646.61/515,643.68 = 212,524.83/x
  3. Step 3: Cross multiply
    373,646.61x = 515,643.68 × 212,524.83
  4. Step 4: Simplify right side
    373,646.61x = 109,587,085,432.57
  5. Step 5: Solve for x
    x = 109,587,085,432.57/373,646.61
  6. Step 6: Final answer
    x = 293,290.73

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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.