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Finding the Fourth Proportional to 372,414.25, 513,931.67 and 202,649.59

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Solution

The fourth proportional to 372,414.25, 513,931.67 and 202,649.59 is: 279,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,414.25 : 513,931.67 = 202,649.59 : x
  2. Step 2: Convert to fraction form
    372,414.25/513,931.67 = 202,649.59/x
  3. Step 3: Cross multiply
    372,414.25x = 513,931.67 × 202,649.59
  4. Step 4: Simplify right side
    372,414.25x = 104,148,042,213.52
  5. Step 5: Solve for x
    x = 104,148,042,213.52/372,414.25
  6. Step 6: Final answer
    x = 279,656.44

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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.