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Finding the Fourth Proportional to 171,491.67, 236,615.73 and 98,916.75

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Solution

The fourth proportional to 171,491.67, 236,615.73 and 98,916.75 is: 136,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,491.67 : 236,615.73 = 98,916.75 : x
  2. Step 2: Convert to fraction form
    171,491.67/236,615.73 = 98,916.75/x
  3. Step 3: Cross multiply
    171,491.67x = 236,615.73 × 98,916.75
  4. Step 4: Simplify right side
    171,491.67x = 23,405,259,010.48
  5. Step 5: Solve for x
    x = 23,405,259,010.48/171,491.67
  6. Step 6: Final answer
    x = 136,480.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.