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Finding the Fourth Proportional to 73,721.74, 101,725.74 and 43,508.32

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Solution

The fourth proportional to 73,721.74, 101,725.74 and 43,508.32 is: 60,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,721.74 : 101,725.74 = 43,508.32 : x
  2. Step 2: Convert to fraction form
    73,721.74/101,725.74 = 43,508.32/x
  3. Step 3: Cross multiply
    73,721.74x = 101,725.74 × 43,508.32
  4. Step 4: Simplify right side
    73,721.74x = 4,425,916,048.16
  5. Step 5: Solve for x
    x = 4,425,916,048.16/73,721.74
  6. Step 6: Final answer
    x = 60,035.43

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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.