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Finding the Fourth Proportional to 191,662.30, 264,493.88 and 111,136.68

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Solution

The fourth proportional to 191,662.30, 264,493.88 and 111,136.68 is: 153,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,662.30 : 264,493.88 = 111,136.68 : x
  2. Step 2: Convert to fraction form
    191,662.30/264,493.88 = 111,136.68/x
  3. Step 3: Cross multiply
    191,662.30x = 264,493.88 × 111,136.68
  4. Step 4: Simplify right side
    191,662.30x = 29,394,971,703.52
  5. Step 5: Solve for x
    x = 29,394,971,703.52/191,662.30
  6. Step 6: Final answer
    x = 153,368.56

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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.