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Finding the Fourth Proportional to 191,837.72, 264,737.21 and 111,313.19

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Solution

The fourth proportional to 191,837.72, 264,737.21 and 111,313.19 is: 153,612.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,837.72 : 264,737.21 = 111,313.19 : x
  2. Step 2: Convert to fraction form
    191,837.72/264,737.21 = 111,313.19/x
  3. Step 3: Cross multiply
    191,837.72x = 264,737.21 × 111,313.19
  4. Step 4: Simplify right side
    191,837.72x = 29,468,741,476.55
  5. Step 5: Solve for x
    x = 29,468,741,476.55/191,837.72
  6. Step 6: Final answer
    x = 153,612.87

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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.