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Finding the Fourth Proportional to 133,174.52, 183,786.30 and 76,585.88

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Solution

The fourth proportional to 133,174.52, 183,786.30 and 76,585.88 is: 105,691.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,174.52 : 183,786.30 = 76,585.88 : x
  2. Step 2: Convert to fraction form
    133,174.52/183,786.30 = 76,585.88/x
  3. Step 3: Cross multiply
    133,174.52x = 183,786.30 × 76,585.88
  4. Step 4: Simplify right side
    133,174.52x = 14,075,435,517.44
  5. Step 5: Solve for x
    x = 14,075,435,517.44/133,174.52
  6. Step 6: Final answer
    x = 105,691.66

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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.