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Finding the Fourth Proportional to 191,937.87, 264,874.46 and 111,381.75

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Solution

The fourth proportional to 191,937.87, 264,874.46 and 111,381.75 is: 153,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,937.87 : 264,874.46 = 111,381.75 : x
  2. Step 2: Convert to fraction form
    191,937.87/264,874.46 = 111,381.75/x
  3. Step 3: Cross multiply
    191,937.87x = 264,874.46 × 111,381.75
  4. Step 4: Simplify right side
    191,937.87x = 29,502,180,328.20
  5. Step 5: Solve for x
    x = 29,502,180,328.20/191,937.87
  6. Step 6: Final answer
    x = 153,706.93

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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.