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Finding the Fourth Proportional to 170,243.81, 234,684.37 and 108,980.98

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Solution

The fourth proportional to 170,243.81, 234,684.37 and 108,980.98 is: 150,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,243.81 : 234,684.37 = 108,980.98 : x
  2. Step 2: Convert to fraction form
    170,243.81/234,684.37 = 108,980.98/x
  3. Step 3: Cross multiply
    170,243.81x = 234,684.37 × 108,980.98
  4. Step 4: Simplify right side
    170,243.81x = 25,576,132,182.80
  5. Step 5: Solve for x
    x = 25,576,132,182.80/170,243.81
  6. Step 6: Final answer
    x = 150,232.38

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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.