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Finding the Fourth Proportional to 292,808.96, 439,213.44 and 71,191.04

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Solution

The fourth proportional to 292,808.96, 439,213.44 and 71,191.04 is: 106,786.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,808.96 : 439,213.44 = 71,191.04 : x
  2. Step 2: Convert to fraction form
    292,808.96/439,213.44 = 71,191.04/x
  3. Step 3: Cross multiply
    292,808.96x = 439,213.44 × 71,191.04
  4. Step 4: Simplify right side
    292,808.96x = 31,268,061,575.58
  5. Step 5: Solve for x
    x = 31,268,061,575.58/292,808.96
  6. Step 6: Final answer
    x = 106,786.56

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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.