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Finding the Fourth Proportional to 191,910.10, 264,883.42 and 130,757.44

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Solution

The fourth proportional to 191,910.10, 264,883.42 and 130,757.44 is: 180,477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,910.10 : 264,883.42 = 130,757.44 : x
  2. Step 2: Convert to fraction form
    191,910.10/264,883.42 = 130,757.44/x
  3. Step 3: Cross multiply
    191,910.10x = 264,883.42 × 130,757.44
  4. Step 4: Simplify right side
    191,910.10x = 34,635,477,897.64
  5. Step 5: Solve for x
    x = 34,635,477,897.64/191,910.10
  6. Step 6: Final answer
    x = 180,477.62

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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.