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Finding the Fourth Proportional to 231,656.40, 347,709.30 and 111,797.72

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Solution

The fourth proportional to 231,656.40, 347,709.30 and 111,797.72 is: 167,805.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,656.40 : 347,709.30 = 111,797.72 : x
  2. Step 2: Convert to fraction form
    231,656.40/347,709.30 = 111,797.72/x
  3. Step 3: Cross multiply
    231,656.40x = 347,709.30 × 111,797.72
  4. Step 4: Simplify right side
    231,656.40x = 38,873,105,224.25
  5. Step 5: Solve for x
    x = 38,873,105,224.25/231,656.40
  6. Step 6: Final answer
    x = 167,805.01

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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.