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Finding the Fourth Proportional to 132,992.45, 183,504.45 and 79,282.46

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Solution

The fourth proportional to 132,992.45, 183,504.45 and 79,282.46 is: 109,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,992.45 : 183,504.45 = 79,282.46 : x
  2. Step 2: Convert to fraction form
    132,992.45/183,504.45 = 79,282.46/x
  3. Step 3: Cross multiply
    132,992.45x = 183,504.45 × 79,282.46
  4. Step 4: Simplify right side
    132,992.45x = 14,548,683,299.42
  5. Step 5: Solve for x
    x = 14,548,683,299.42/132,992.45
  6. Step 6: Final answer
    x = 109,394.81

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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.