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Finding the Fourth Proportional to 194,603.58, 268,552.82 and 105,179.58

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Solution

The fourth proportional to 194,603.58, 268,552.82 and 105,179.58 is: 145,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,603.58 : 268,552.82 = 105,179.58 : x
  2. Step 2: Convert to fraction form
    194,603.58/268,552.82 = 105,179.58/x
  3. Step 3: Cross multiply
    194,603.58x = 268,552.82 × 105,179.58
  4. Step 4: Simplify right side
    194,603.58x = 28,246,272,289.52
  5. Step 5: Solve for x
    x = 28,246,272,289.52/194,603.58
  6. Step 6: Final answer
    x = 145,147.75

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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.