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Finding the Fourth Proportional to 373,422.94, 515,176.95 and 229,934.14

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Solution

The fourth proportional to 373,422.94, 515,176.95 and 229,934.14 is: 317,218.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,422.94 : 515,176.95 = 229,934.14 : x
  2. Step 2: Convert to fraction form
    373,422.94/515,176.95 = 229,934.14/x
  3. Step 3: Cross multiply
    373,422.94x = 515,176.95 × 229,934.14
  4. Step 4: Simplify right side
    373,422.94x = 118,456,768,946.07
  5. Step 5: Solve for x
    x = 118,456,768,946.07/373,422.94
  6. Step 6: Final answer
    x = 317,218.78

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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.