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Finding the Fourth Proportional to 124,293.61, 171,520.34 and 75,976.44

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Solution

The fourth proportional to 124,293.61, 171,520.34 and 75,976.44 is: 104,844.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,293.61 : 171,520.34 = 75,976.44 : x
  2. Step 2: Convert to fraction form
    124,293.61/171,520.34 = 75,976.44/x
  3. Step 3: Cross multiply
    124,293.61x = 171,520.34 × 75,976.44
  4. Step 4: Simplify right side
    124,293.61x = 13,031,504,820.79
  5. Step 5: Solve for x
    x = 13,031,504,820.79/124,293.61
  6. Step 6: Final answer
    x = 104,844.53

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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.