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Finding the Fourth Proportional to 191,910.25, 264,750.53 and 111,291.09

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Solution

The fourth proportional to 191,910.25, 264,750.53 and 111,291.09 is: 153,532.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,910.25 : 264,750.53 = 111,291.09 : x
  2. Step 2: Convert to fraction form
    191,910.25/264,750.53 = 111,291.09/x
  3. Step 3: Cross multiply
    191,910.25x = 264,750.53 × 111,291.09
  4. Step 4: Simplify right side
    191,910.25x = 29,464,375,340.01
  5. Step 5: Solve for x
    x = 29,464,375,340.01/191,910.25
  6. Step 6: Final answer
    x = 153,532.06

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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.