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Finding the Fourth Proportional to 303,136.15, 418,330.79 and 167,174.91

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Solution

The fourth proportional to 303,136.15, 418,330.79 and 167,174.91 is: 230,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,136.15 : 418,330.79 = 167,174.91 : x
  2. Step 2: Convert to fraction form
    303,136.15/418,330.79 = 167,174.91/x
  3. Step 3: Cross multiply
    303,136.15x = 418,330.79 × 167,174.91
  4. Step 4: Simplify right side
    303,136.15x = 69,934,412,586.42
  5. Step 5: Solve for x
    x = 69,934,412,586.42/303,136.15
  6. Step 6: Final answer
    x = 230,702.98

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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.