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Finding the Fourth Proportional to 59,398.92, 89,079.75 and 19,408.79

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Solution

The fourth proportional to 59,398.92, 89,079.75 and 19,408.79 is: 29,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,398.92 : 89,079.75 = 19,408.79 : x
  2. Step 2: Convert to fraction form
    59,398.92/89,079.75 = 19,408.79/x
  3. Step 3: Cross multiply
    59,398.92x = 89,079.75 × 19,408.79
  4. Step 4: Simplify right side
    59,398.92x = 1,728,930,161.00
  5. Step 5: Solve for x
    x = 1,728,930,161.00/59,398.92
  6. Step 6: Final answer
    x = 29,107.10

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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.