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Finding the Fourth Proportional to 144,236.76, 215,976.60 and 101,887.80

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Solution

The fourth proportional to 144,236.76, 215,976.60 and 101,887.80 is: 152,564.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,236.76 : 215,976.60 = 101,887.80 : x
  2. Step 2: Convert to fraction form
    144,236.76/215,976.60 = 101,887.80/x
  3. Step 3: Cross multiply
    144,236.76x = 215,976.60 × 101,887.80
  4. Step 4: Simplify right side
    144,236.76x = 22,005,380,625.48
  5. Step 5: Solve for x
    x = 22,005,380,625.48/144,236.76
  6. Step 6: Final answer
    x = 152,564.30

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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.