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Finding the Fourth Proportional to 194,356.52, 291,619.50 and 68,087.48

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Solution

The fourth proportional to 194,356.52, 291,619.50 and 68,087.48 is: 102,160.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,356.52 : 291,619.50 = 68,087.48 : x
  2. Step 2: Convert to fraction form
    194,356.52/291,619.50 = 68,087.48/x
  3. Step 3: Cross multiply
    194,356.52x = 291,619.50 × 68,087.48
  4. Step 4: Simplify right side
    194,356.52x = 19,855,636,873.86
  5. Step 5: Solve for x
    x = 19,855,636,873.86/194,356.52
  6. Step 6: Final answer
    x = 102,160.90

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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.