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Finding the Fourth Proportional to 89,966, 134,854.94 and 36,634.98

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Solution

The fourth proportional to 89,966, 134,854.94 and 36,634.98 is: 54,914.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,966 : 134,854.94 = 36,634.98 : x
  2. Step 2: Convert to fraction form
    89,966/134,854.94 = 36,634.98/x
  3. Step 3: Cross multiply
    89,966x = 134,854.94 × 36,634.98
  4. Step 4: Simplify right side
    89,966x = 4,940,408,029.80
  5. Step 5: Solve for x
    x = 4,940,408,029.80/89,966
  6. Step 6: Final answer
    x = 54,914.17

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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.