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Finding the Fourth Proportional to 373,646.11, 515,642.99 and 212,524.33

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Solution

The fourth proportional to 373,646.11, 515,642.99 and 212,524.33 is: 293,290.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,646.11 : 515,642.99 = 212,524.33 : x
  2. Step 2: Convert to fraction form
    373,646.11/515,642.99 = 212,524.33/x
  3. Step 3: Cross multiply
    373,646.11x = 515,642.99 × 212,524.33
  4. Step 4: Simplify right side
    373,646.11x = 109,586,680,968.95
  5. Step 5: Solve for x
    x = 109,586,680,968.95/373,646.11
  6. Step 6: Final answer
    x = 293,290.04

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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.