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Finding the Fourth Proportional to 133,174, 183,780.12 and 73,561.84

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Solution

The fourth proportional to 133,174, 183,780.12 and 73,561.84 is: 101,515.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,174 : 183,780.12 = 73,561.84 : x
  2. Step 2: Convert to fraction form
    133,174/183,780.12 = 73,561.84/x
  3. Step 3: Cross multiply
    133,174x = 183,780.12 × 73,561.84
  4. Step 4: Simplify right side
    133,174x = 13,519,203,782.62
  5. Step 5: Solve for x
    x = 13,519,203,782.62/133,174
  6. Step 6: Final answer
    x = 101,515.34

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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.