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Finding the Fourth Proportional to 89,843.94, 134,848.67 and 45,501.57

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Solution

The fourth proportional to 89,843.94, 134,848.67 and 45,501.57 is: 68,294.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,843.94 : 134,848.67 = 45,501.57 : x
  2. Step 2: Convert to fraction form
    89,843.94/134,848.67 = 45,501.57/x
  3. Step 3: Cross multiply
    89,843.94x = 134,848.67 × 45,501.57
  4. Step 4: Simplify right side
    89,843.94x = 6,135,825,969.90
  5. Step 5: Solve for x
    x = 6,135,825,969.90/89,843.94
  6. Step 6: Final answer
    x = 68,294.27

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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.