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Finding the Fourth Proportional to 75,513.98, 113,307.81 and 53,469.02

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Solution

The fourth proportional to 75,513.98, 113,307.81 and 53,469.02 is: 80,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,513.98 : 113,307.81 = 53,469.02 : x
  2. Step 2: Convert to fraction form
    75,513.98/113,307.81 = 53,469.02/x
  3. Step 3: Cross multiply
    75,513.98x = 113,307.81 × 53,469.02
  4. Step 4: Simplify right side
    75,513.98x = 6,058,456,992.51
  5. Step 5: Solve for x
    x = 6,058,456,992.51/75,513.98
  6. Step 6: Final answer
    x = 80,229.61

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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.