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Finding the Fourth Proportional to 89,647.51, 134,471.13 and 27,318.01

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Solution

The fourth proportional to 89,647.51, 134,471.13 and 27,318.01 is: 40,976.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,647.51 : 134,471.13 = 27,318.01 : x
  2. Step 2: Convert to fraction form
    89,647.51/134,471.13 = 27,318.01/x
  3. Step 3: Cross multiply
    89,647.51x = 134,471.13 × 27,318.01
  4. Step 4: Simplify right side
    89,647.51x = 3,673,483,674.05
  5. Step 5: Solve for x
    x = 3,673,483,674.05/89,647.51
  6. Step 6: Final answer
    x = 40,976.97

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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.