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Finding the Fourth Proportional to 229,136.96, 343,623.41 and 79,337.02

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Solution

The fourth proportional to 229,136.96, 343,623.41 and 79,337.02 is: 118,977.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,136.96 : 343,623.41 = 79,337.02 : x
  2. Step 2: Convert to fraction form
    229,136.96/343,623.41 = 79,337.02/x
  3. Step 3: Cross multiply
    229,136.96x = 343,623.41 × 79,337.02
  4. Step 4: Simplify right side
    229,136.96x = 27,262,057,351.64
  5. Step 5: Solve for x
    x = 27,262,057,351.64/229,136.96
  6. Step 6: Final answer
    x = 118,977.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.