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Finding the Fourth Proportional to 297,686.93, 410,806.31 and 161,719.79

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Solution

The fourth proportional to 297,686.93, 410,806.31 and 161,719.79 is: 223,172.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,686.93 : 410,806.31 = 161,719.79 : x
  2. Step 2: Convert to fraction form
    297,686.93/410,806.31 = 161,719.79/x
  3. Step 3: Cross multiply
    297,686.93x = 410,806.31 × 161,719.79
  4. Step 4: Simplify right side
    297,686.93x = 66,435,507,321.24
  5. Step 5: Solve for x
    x = 66,435,507,321.24/297,686.93
  6. Step 6: Final answer
    x = 223,172.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.