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Finding the Fourth Proportional to 139,324.70, 192,326.95 and 94,064

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Solution

The fourth proportional to 139,324.70, 192,326.95 and 94,064 is: 129,848.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,324.70 : 192,326.95 = 94,064 : x
  2. Step 2: Convert to fraction form
    139,324.70/192,326.95 = 94,064/x
  3. Step 3: Cross multiply
    139,324.70x = 192,326.95 × 94,064
  4. Step 4: Simplify right side
    139,324.70x = 18,091,042,224.80
  5. Step 5: Solve for x
    x = 18,091,042,224.80/139,324.70
  6. Step 6: Final answer
    x = 129,848.06

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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.