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Finding the Fourth Proportional to 291,634.59, 437,293.55 and 131,523.22

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Solution

The fourth proportional to 291,634.59, 437,293.55 and 131,523.22 is: 197,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,634.59 : 437,293.55 = 131,523.22 : x
  2. Step 2: Convert to fraction form
    291,634.59/437,293.55 = 131,523.22/x
  3. Step 3: Cross multiply
    291,634.59x = 437,293.55 × 131,523.22
  4. Step 4: Simplify right side
    291,634.59x = 57,514,255,016.81
  5. Step 5: Solve for x
    x = 57,514,255,016.81/291,634.59
  6. Step 6: Final answer
    x = 197,213.42

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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.