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Finding the Fourth Proportional to 227,201.96, 340,803.75 and 69,429.76

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Solution

The fourth proportional to 227,201.96, 340,803.75 and 69,429.76 is: 104,144.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,201.96 : 340,803.75 = 69,429.76 : x
  2. Step 2: Convert to fraction form
    227,201.96/340,803.75 = 69,429.76/x
  3. Step 3: Cross multiply
    227,201.96x = 340,803.75 × 69,429.76
  4. Step 4: Simplify right side
    227,201.96x = 23,661,922,569.60
  5. Step 5: Solve for x
    x = 23,661,922,569.60/227,201.96
  6. Step 6: Final answer
    x = 104,144.89

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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.