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Finding the Fourth Proportional to 191,453.40, 264,201.31 and 119,872.89

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Solution

The fourth proportional to 191,453.40, 264,201.31 and 119,872.89 is: 165,421.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,453.40 : 264,201.31 = 119,872.89 : x
  2. Step 2: Convert to fraction form
    191,453.40/264,201.31 = 119,872.89/x
  3. Step 3: Cross multiply
    191,453.40x = 264,201.31 × 119,872.89
  4. Step 4: Simplify right side
    191,453.40x = 31,670,572,651.11
  5. Step 5: Solve for x
    x = 31,670,572,651.11/191,453.40
  6. Step 6: Final answer
    x = 165,421.84

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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.