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Finding the Fourth Proportional to 191,915.46, 264,771.99 and 111,297.78

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Solution

The fourth proportional to 191,915.46, 264,771.99 and 111,297.78 is: 153,549.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,915.46 : 264,771.99 = 111,297.78 : x
  2. Step 2: Convert to fraction form
    191,915.46/264,771.99 = 111,297.78/x
  3. Step 3: Cross multiply
    191,915.46x = 264,771.99 × 111,297.78
  4. Step 4: Simplify right side
    191,915.46x = 29,468,534,693.18
  5. Step 5: Solve for x
    x = 29,468,534,693.18/191,915.46
  6. Step 6: Final answer
    x = 153,549.56

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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.