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Finding the Fourth Proportional to 113,955.75, 170,499.87 and 68,810.94

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Solution

The fourth proportional to 113,955.75, 170,499.87 and 68,810.94 is: 102,954.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,955.75 : 170,499.87 = 68,810.94 : x
  2. Step 2: Convert to fraction form
    113,955.75/170,499.87 = 68,810.94/x
  3. Step 3: Cross multiply
    113,955.75x = 170,499.87 × 68,810.94
  4. Step 4: Simplify right side
    113,955.75x = 11,732,256,324.58
  5. Step 5: Solve for x
    x = 11,732,256,324.58/113,955.75
  6. Step 6: Final answer
    x = 102,954.49

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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.