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Finding the Fourth Proportional to 124,633.76, 171,995.46 and 68,046.44

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Solution

The fourth proportional to 124,633.76, 171,995.46 and 68,046.44 is: 93,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,633.76 : 171,995.46 = 68,046.44 : x
  2. Step 2: Convert to fraction form
    124,633.76/171,995.46 = 68,046.44/x
  3. Step 3: Cross multiply
    124,633.76x = 171,995.46 × 68,046.44
  4. Step 4: Simplify right side
    124,633.76x = 11,703,678,749.16
  5. Step 5: Solve for x
    x = 11,703,678,749.16/124,633.76
  6. Step 6: Final answer
    x = 93,904.56

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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.