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Finding the Fourth Proportional to 133,327.55, 199,991.33 and 53,401.82

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Solution

The fourth proportional to 133,327.55, 199,991.33 and 53,401.82 is: 80,102.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,327.55 : 199,991.33 = 53,401.82 : x
  2. Step 2: Convert to fraction form
    133,327.55/199,991.33 = 53,401.82/x
  3. Step 3: Cross multiply
    133,327.55x = 199,991.33 × 53,401.82
  4. Step 4: Simplify right side
    133,327.55x = 10,679,899,939.51
  5. Step 5: Solve for x
    x = 10,679,899,939.51/133,327.55
  6. Step 6: Final answer
    x = 80,102.72

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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.