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Finding the Fourth Proportional to 191,751.75, 264,618.72 and 106,874.28

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Solution

The fourth proportional to 191,751.75, 264,618.72 and 106,874.28 is: 147,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,751.75 : 264,618.72 = 106,874.28 : x
  2. Step 2: Convert to fraction form
    191,751.75/264,618.72 = 106,874.28/x
  3. Step 3: Cross multiply
    191,751.75x = 264,618.72 × 106,874.28
  4. Step 4: Simplify right side
    191,751.75x = 28,280,935,174.52
  5. Step 5: Solve for x
    x = 28,280,935,174.52/191,751.75
  6. Step 6: Final answer
    x = 147,487.23

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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.