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Finding the Fourth Proportional to 191,920.67, 264,764.88 and 111,301.47

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Solution

The fourth proportional to 191,920.67, 264,764.88 and 111,301.47 is: 153,546.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,920.67 : 264,764.88 = 111,301.47 : x
  2. Step 2: Convert to fraction form
    191,920.67/264,764.88 = 111,301.47/x
  3. Step 3: Cross multiply
    191,920.67x = 264,764.88 × 111,301.47
  4. Step 4: Simplify right side
    191,920.67x = 29,468,719,290.69
  5. Step 5: Solve for x
    x = 29,468,719,290.69/191,920.67
  6. Step 6: Final answer
    x = 153,546.36

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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.