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Finding the Fourth Proportional to 133,463.19, 184,171.32 and 73,021.80

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Solution

The fourth proportional to 133,463.19, 184,171.32 and 73,021.80 is: 100,765.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,463.19 : 184,171.32 = 73,021.80 : x
  2. Step 2: Convert to fraction form
    133,463.19/184,171.32 = 73,021.80/x
  3. Step 3: Cross multiply
    133,463.19x = 184,171.32 × 73,021.80
  4. Step 4: Simplify right side
    133,463.19x = 13,448,521,985.42
  5. Step 5: Solve for x
    x = 13,448,521,985.42/133,463.19
  6. Step 6: Final answer
    x = 100,765.77

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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.