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Finding the Fourth Proportional to 136,696.56, 205,233.71 and 94,472.61

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Solution

The fourth proportional to 136,696.56, 205,233.71 and 94,472.61 is: 141,839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,696.56 : 205,233.71 = 94,472.61 : x
  2. Step 2: Convert to fraction form
    136,696.56/205,233.71 = 94,472.61/x
  3. Step 3: Cross multiply
    136,696.56x = 205,233.71 × 94,472.61
  4. Step 4: Simplify right side
    136,696.56x = 19,388,963,771.32
  5. Step 5: Solve for x
    x = 19,388,963,771.32/136,696.56
  6. Step 6: Final answer
    x = 141,839.44

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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.