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Finding the Fourth Proportional to 133,615.65, 184,389.67 and 73,187.30

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Solution

The fourth proportional to 133,615.65, 184,389.67 and 73,187.30 is: 100,998.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,615.65 : 184,389.67 = 73,187.30 : x
  2. Step 2: Convert to fraction form
    133,615.65/184,389.67 = 73,187.30/x
  3. Step 3: Cross multiply
    133,615.65x = 184,389.67 × 73,187.30
  4. Step 4: Simplify right side
    133,615.65x = 13,494,982,647.65
  5. Step 5: Solve for x
    x = 13,494,982,647.65/133,615.65
  6. Step 6: Final answer
    x = 100,998.52

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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.