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Finding the Fourth Proportional to 53,910.40, 80,865.60 and 50,848.60

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Solution

The fourth proportional to 53,910.40, 80,865.60 and 50,848.60 is: 76,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,910.40 : 80,865.60 = 50,848.60 : x
  2. Step 2: Convert to fraction form
    53,910.40/80,865.60 = 50,848.60/x
  3. Step 3: Cross multiply
    53,910.40x = 80,865.60 × 50,848.60
  4. Step 4: Simplify right side
    53,910.40x = 4,111,902,548.16
  5. Step 5: Solve for x
    x = 4,111,902,548.16/53,910.40
  6. Step 6: Final answer
    x = 76,272.90

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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.