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Finding the Fourth Proportional to 79,913.52, 119,883.29 and 29,997.54

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Solution

The fourth proportional to 79,913.52, 119,883.29 and 29,997.54 is: 45,001.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,913.52 : 119,883.29 = 29,997.54 : x
  2. Step 2: Convert to fraction form
    79,913.52/119,883.29 = 29,997.54/x
  3. Step 3: Cross multiply
    79,913.52x = 119,883.29 × 29,997.54
  4. Step 4: Simplify right side
    79,913.52x = 3,596,203,637.12
  5. Step 5: Solve for x
    x = 3,596,203,637.12/79,913.52
  6. Step 6: Final answer
    x = 45,001.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.