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Finding the Fourth Proportional to 188,415.63, 282,664.97 and 104,298.49

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Solution

The fourth proportional to 188,415.63, 282,664.97 and 104,298.49 is: 156,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,415.63 : 282,664.97 = 104,298.49 : x
  2. Step 2: Convert to fraction form
    188,415.63/282,664.97 = 104,298.49/x
  3. Step 3: Cross multiply
    188,415.63x = 282,664.97 × 104,298.49
  4. Step 4: Simplify right side
    188,415.63x = 29,481,529,546.90
  5. Step 5: Solve for x
    x = 29,481,529,546.90/188,415.63
  6. Step 6: Final answer
    x = 156,470.72

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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.