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Finding the Fourth Proportional to 227,203.71, 340,806.38 and 69,431.51

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Solution

The fourth proportional to 227,203.71, 340,806.38 and 69,431.51 is: 104,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,203.71 : 340,806.38 = 69,431.51 : x
  2. Step 2: Convert to fraction form
    227,203.71/340,806.38 = 69,431.51/x
  3. Step 3: Cross multiply
    227,203.71x = 340,806.38 × 69,431.51
  4. Step 4: Simplify right side
    227,203.71x = 23,662,699,529.84
  5. Step 5: Solve for x
    x = 23,662,699,529.84/227,203.71
  6. Step 6: Final answer
    x = 104,147.51

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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.