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Finding the Fourth Proportional to 119,333.80, 164,679.78 and 68,357.80

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Solution

The fourth proportional to 119,333.80, 164,679.78 and 68,357.80 is: 94,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,333.80 : 164,679.78 = 68,357.80 : x
  2. Step 2: Convert to fraction form
    119,333.80/164,679.78 = 68,357.80/x
  3. Step 3: Cross multiply
    119,333.80x = 164,679.78 × 68,357.80
  4. Step 4: Simplify right side
    119,333.80x = 11,257,147,465.28
  5. Step 5: Solve for x
    x = 11,257,147,465.28/119,333.80
  6. Step 6: Final answer
    x = 94,333.27

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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.