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Finding the Fourth Proportional to 147,481.28, 221,222.64 and 36,673.28

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Solution

The fourth proportional to 147,481.28, 221,222.64 and 36,673.28 is: 55,010.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,481.28 : 221,222.64 = 36,673.28 : x
  2. Step 2: Convert to fraction form
    147,481.28/221,222.64 = 36,673.28/x
  3. Step 3: Cross multiply
    147,481.28x = 221,222.64 × 36,673.28
  4. Step 4: Simplify right side
    147,481.28x = 8,112,959,819.06
  5. Step 5: Solve for x
    x = 8,112,959,819.06/147,481.28
  6. Step 6: Final answer
    x = 55,010.10

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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.