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Finding the Fourth Proportional to 113,940.96, 170,914.14 and 39,060.54

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Solution

The fourth proportional to 113,940.96, 170,914.14 and 39,060.54 is: 58,591.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,940.96 : 170,914.14 = 39,060.54 : x
  2. Step 2: Convert to fraction form
    113,940.96/170,914.14 = 39,060.54/x
  3. Step 3: Cross multiply
    113,940.96x = 170,914.14 × 39,060.54
  4. Step 4: Simplify right side
    113,940.96x = 6,675,998,602.04
  5. Step 5: Solve for x
    x = 6,675,998,602.04/113,940.96
  6. Step 6: Final answer
    x = 58,591.74

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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.