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Finding the Fourth Proportional to 191,866.72, 264,711.63 and 111,264.85

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Solution

The fourth proportional to 191,866.72, 264,711.63 and 111,264.85 is: 153,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,866.72 : 264,711.63 = 111,264.85 : x
  2. Step 2: Convert to fraction form
    191,866.72/264,711.63 = 111,264.85/x
  3. Step 3: Cross multiply
    191,866.72x = 264,711.63 × 111,264.85
  4. Step 4: Simplify right side
    191,866.72x = 29,453,099,805.21
  5. Step 5: Solve for x
    x = 29,453,099,805.21/191,866.72
  6. Step 6: Final answer
    x = 153,508.12

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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.