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Finding the Fourth Proportional to 373,729.93, 515,759.33 and 212,580.83

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Solution

The fourth proportional to 373,729.93, 515,759.33 and 212,580.83 is: 293,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,729.93 : 515,759.33 = 212,580.83 : x
  2. Step 2: Convert to fraction form
    373,729.93/515,759.33 = 212,580.83/x
  3. Step 3: Cross multiply
    373,729.93x = 515,759.33 × 212,580.83
  4. Step 4: Simplify right side
    373,729.93x = 109,640,545,388.74
  5. Step 5: Solve for x
    x = 109,640,545,388.74/373,729.93
  6. Step 6: Final answer
    x = 293,368.39

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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.