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Finding the Fourth Proportional to 73,255.52, 101,092.08 and 39,721.28

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Solution

The fourth proportional to 73,255.52, 101,092.08 and 39,721.28 is: 54,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,255.52 : 101,092.08 = 39,721.28 : x
  2. Step 2: Convert to fraction form
    73,255.52/101,092.08 = 39,721.28/x
  3. Step 3: Cross multiply
    73,255.52x = 101,092.08 × 39,721.28
  4. Step 4: Simplify right side
    73,255.52x = 4,015,506,815.46
  5. Step 5: Solve for x
    x = 4,015,506,815.46/73,255.52
  6. Step 6: Final answer
    x = 54,815.07

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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.