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Finding the Fourth Proportional to 191,351, 264,135.66 and 143,741.90

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Solution

The fourth proportional to 191,351, 264,135.66 and 143,741.90 is: 198,417.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,351 : 264,135.66 = 143,741.90 : x
  2. Step 2: Convert to fraction form
    191,351/264,135.66 = 143,741.90/x
  3. Step 3: Cross multiply
    191,351x = 264,135.66 × 143,741.90
  4. Step 4: Simplify right side
    191,351x = 37,967,361,626.15
  5. Step 5: Solve for x
    x = 37,967,361,626.15/191,351
  6. Step 6: Final answer
    x = 198,417.37

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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.