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Finding the Fourth Proportional to 73,524, 101,463.24 and 39,990

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Solution

The fourth proportional to 73,524, 101,463.24 and 39,990 is: 55,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,524 : 101,463.24 = 39,990 : x
  2. Step 2: Convert to fraction form
    73,524/101,463.24 = 39,990/x
  3. Step 3: Cross multiply
    73,524x = 101,463.24 × 39,990
  4. Step 4: Simplify right side
    73,524x = 4,057,514,967.60
  5. Step 5: Solve for x
    x = 4,057,514,967.60/73,524
  6. Step 6: Final answer
    x = 55,186.27

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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.