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Finding the Fourth Proportional to 272,942.99, 409,358.00 and 73,215.89

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Solution

The fourth proportional to 272,942.99, 409,358.00 and 73,215.89 is: 109,808.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,942.99 : 409,358.00 = 73,215.89 : x
  2. Step 2: Convert to fraction form
    272,942.99/409,358.00 = 73,215.89/x
  3. Step 3: Cross multiply
    272,942.99x = 409,358.00 × 73,215.89
  4. Step 4: Simplify right side
    272,942.99x = 29,971,507,885.75
  5. Step 5: Solve for x
    x = 29,971,507,885.75/272,942.99
  6. Step 6: Final answer
    x = 109,808.68

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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.