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Finding the Fourth Proportional to 191,706.65, 264,556.23 and 111,181.92

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Solution

The fourth proportional to 191,706.65, 264,556.23 and 111,181.92 is: 153,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,706.65 : 264,556.23 = 111,181.92 : x
  2. Step 2: Convert to fraction form
    191,706.65/264,556.23 = 111,181.92/x
  3. Step 3: Cross multiply
    191,706.65x = 264,556.23 × 111,181.92
  4. Step 4: Simplify right side
    191,706.65x = 29,413,868,190.34
  5. Step 5: Solve for x
    x = 29,413,868,190.34/191,706.65
  6. Step 6: Final answer
    x = 153,431.65

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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.