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Finding the Fourth Proportional to 293,268.96, 439,899.60 and 71,654.88

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Solution

The fourth proportional to 293,268.96, 439,899.60 and 71,654.88 is: 107,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,268.96 : 439,899.60 = 71,654.88 : x
  2. Step 2: Convert to fraction form
    293,268.96/439,899.60 = 71,654.88/x
  3. Step 3: Cross multiply
    293,268.96x = 439,899.60 × 71,654.88
  4. Step 4: Simplify right side
    293,268.96x = 31,520,953,050.05
  5. Step 5: Solve for x
    x = 31,520,953,050.05/293,268.96
  6. Step 6: Final answer
    x = 107,481.38

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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.