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Finding the Fourth Proportional to 115,491.92, 173,237.87 and 43,458.37

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Solution

The fourth proportional to 115,491.92, 173,237.87 and 43,458.37 is: 65,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,491.92 : 173,237.87 = 43,458.37 : x
  2. Step 2: Convert to fraction form
    115,491.92/173,237.87 = 43,458.37/x
  3. Step 3: Cross multiply
    115,491.92x = 173,237.87 × 43,458.37
  4. Step 4: Simplify right side
    115,491.92x = 7,528,635,128.02
  5. Step 5: Solve for x
    x = 7,528,635,128.02/115,491.92
  6. Step 6: Final answer
    x = 65,187.55

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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.