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Finding the Fourth Proportional to 229,136.94, 343,623.39 and 79,337.03

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Solution

The fourth proportional to 229,136.94, 343,623.39 and 79,337.03 is: 118,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,136.94 : 343,623.39 = 79,337.03 : x
  2. Step 2: Convert to fraction form
    229,136.94/343,623.39 = 79,337.03/x
  3. Step 3: Cross multiply
    229,136.94x = 343,623.39 × 79,337.03
  4. Step 4: Simplify right side
    229,136.94x = 27,262,057,483.01
  5. Step 5: Solve for x
    x = 27,262,057,483.01/229,136.94
  6. Step 6: Final answer
    x = 118,977.14

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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.