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Finding the Fourth Proportional to 363,307.17, 544,963.79 and 126,649.47

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Solution

The fourth proportional to 363,307.17, 544,963.79 and 126,649.47 is: 189,975.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,307.17 : 544,963.79 = 126,649.47 : x
  2. Step 2: Convert to fraction form
    363,307.17/544,963.79 = 126,649.47/x
  3. Step 3: Cross multiply
    363,307.17x = 544,963.79 × 126,649.47
  4. Step 4: Simplify right side
    363,307.17x = 69,019,375,172.69
  5. Step 5: Solve for x
    x = 69,019,375,172.69/363,307.17
  6. Step 6: Final answer
    x = 189,975.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.