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Finding the Fourth Proportional to 293,749.72, 405,373.62 and 166,449.58

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Solution

The fourth proportional to 293,749.72, 405,373.62 and 166,449.58 is: 229,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,749.72 : 405,373.62 = 166,449.58 : x
  2. Step 2: Convert to fraction form
    293,749.72/405,373.62 = 166,449.58/x
  3. Step 3: Cross multiply
    293,749.72x = 405,373.62 × 166,449.58
  4. Step 4: Simplify right side
    293,749.72x = 67,474,268,792.08
  5. Step 5: Solve for x
    x = 67,474,268,792.08/293,749.72
  6. Step 6: Final answer
    x = 229,699.86

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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.