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Finding the Fourth Proportional to 89,616, 134,218.62 and 52,083.12

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Solution

The fourth proportional to 89,616, 134,218.62 and 52,083.12 is: 78,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,616 : 134,218.62 = 52,083.12 : x
  2. Step 2: Convert to fraction form
    89,616/134,218.62 = 52,083.12/x
  3. Step 3: Cross multiply
    89,616x = 134,218.62 × 52,083.12
  4. Step 4: Simplify right side
    89,616x = 6,990,524,491.69
  5. Step 5: Solve for x
    x = 6,990,524,491.69/89,616
  6. Step 6: Final answer
    x = 78,005.32

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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.