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Finding the Fourth Proportional to 89,963.79, 134,945.87 and 23,403.81

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Solution

The fourth proportional to 89,963.79, 134,945.87 and 23,403.81 is: 35,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,963.79 : 134,945.87 = 23,403.81 : x
  2. Step 2: Convert to fraction form
    89,963.79/134,945.87 = 23,403.81/x
  3. Step 3: Cross multiply
    89,963.79x = 134,945.87 × 23,403.81
  4. Step 4: Simplify right side
    89,963.79x = 3,158,247,384.75
  5. Step 5: Solve for x
    x = 3,158,247,384.75/89,963.79
  6. Step 6: Final answer
    x = 35,105.76

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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.