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Finding the Fourth Proportional to 116,138.97, 174,187.70 and 73,893.57

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Solution

The fourth proportional to 116,138.97, 174,187.70 and 73,893.57 is: 110,827.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,138.97 : 174,187.70 = 73,893.57 : x
  2. Step 2: Convert to fraction form
    116,138.97/174,187.70 = 73,893.57/x
  3. Step 3: Cross multiply
    116,138.97x = 174,187.70 × 73,893.57
  4. Step 4: Simplify right side
    116,138.97x = 12,871,350,621.45
  5. Step 5: Solve for x
    x = 12,871,350,621.45/116,138.97
  6. Step 6: Final answer
    x = 110,827.14

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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.