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Finding the Fourth Proportional to 70,046.61, 104,963.34 and 51,339.05

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Solution

The fourth proportional to 70,046.61, 104,963.34 and 51,339.05 is: 76,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,046.61 : 104,963.34 = 51,339.05 : x
  2. Step 2: Convert to fraction form
    70,046.61/104,963.34 = 51,339.05/x
  3. Step 3: Cross multiply
    70,046.61x = 104,963.34 × 51,339.05
  4. Step 4: Simplify right side
    70,046.61x = 5,388,718,221.74
  5. Step 5: Solve for x
    x = 5,388,718,221.74/70,046.61
  6. Step 6: Final answer
    x = 76,930.47

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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.