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Finding the Fourth Proportional to 115,840.52, 173,775.09 and 40,945.22

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Solution

The fourth proportional to 115,840.52, 173,775.09 and 40,945.22 is: 61,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,840.52 : 173,775.09 = 40,945.22 : x
  2. Step 2: Convert to fraction form
    115,840.52/173,775.09 = 40,945.22/x
  3. Step 3: Cross multiply
    115,840.52x = 173,775.09 × 40,945.22
  4. Step 4: Simplify right side
    115,840.52x = 7,115,259,290.57
  5. Step 5: Solve for x
    x = 7,115,259,290.57/115,840.52
  6. Step 6: Final answer
    x = 61,422.89

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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.