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Finding the Fourth Proportional to 84,894.30, 117,102.03 and 50,415.62

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Solution

The fourth proportional to 84,894.30, 117,102.03 and 50,415.62 is: 69,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,894.30 : 117,102.03 = 50,415.62 : x
  2. Step 2: Convert to fraction form
    84,894.30/117,102.03 = 50,415.62/x
  3. Step 3: Cross multiply
    84,894.30x = 117,102.03 × 50,415.62
  4. Step 4: Simplify right side
    84,894.30x = 5,903,770,812.93
  5. Step 5: Solve for x
    x = 5,903,770,812.93/84,894.30
  6. Step 6: Final answer
    x = 69,542.60

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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.