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Finding the Fourth Proportional to 89,893.67, 134,923.32 and 45,551.84

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Solution

The fourth proportional to 89,893.67, 134,923.32 and 45,551.84 is: 68,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,893.67 : 134,923.32 = 45,551.84 : x
  2. Step 2: Convert to fraction form
    89,893.67/134,923.32 = 45,551.84/x
  3. Step 3: Cross multiply
    89,893.67x = 134,923.32 × 45,551.84
  4. Step 4: Simplify right side
    89,893.67x = 6,146,004,810.29
  5. Step 5: Solve for x
    x = 6,146,004,810.29/89,893.67
  6. Step 6: Final answer
    x = 68,369.72

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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.