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Finding the Fourth Proportional to 171,222.70, 236,266.61 and 98,649.33

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Solution

The fourth proportional to 171,222.70, 236,266.61 and 98,649.33 is: 136,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,222.70 : 236,266.61 = 98,649.33 : x
  2. Step 2: Convert to fraction form
    171,222.70/236,266.61 = 98,649.33/x
  3. Step 3: Cross multiply
    171,222.70x = 236,266.61 × 98,649.33
  4. Step 4: Simplify right side
    171,222.70x = 23,307,541,596.54
  5. Step 5: Solve for x
    x = 23,307,541,596.54/171,222.70
  6. Step 6: Final answer
    x = 136,124.14

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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.