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Finding the Fourth Proportional to 89,994.98, 134,709.24 and 61,749.92

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Solution

The fourth proportional to 89,994.98, 134,709.24 and 61,749.92 is: 92,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,994.98 : 134,709.24 = 61,749.92 : x
  2. Step 2: Convert to fraction form
    89,994.98/134,709.24 = 61,749.92/x
  3. Step 3: Cross multiply
    89,994.98x = 134,709.24 × 61,749.92
  4. Step 4: Simplify right side
    89,994.98x = 8,318,284,793.26
  5. Step 5: Solve for x
    x = 8,318,284,793.26/89,994.98
  6. Step 6: Final answer
    x = 92,430.54

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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.