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Finding the Fourth Proportional to 118,983.49, 164,174.47 and 68,012.37

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Solution

The fourth proportional to 118,983.49, 164,174.47 and 68,012.37 is: 93,844.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,983.49 : 164,174.47 = 68,012.37 : x
  2. Step 2: Convert to fraction form
    118,983.49/164,174.47 = 68,012.37/x
  3. Step 3: Cross multiply
    118,983.49x = 164,174.47 × 68,012.37
  4. Step 4: Simplify right side
    118,983.49x = 11,165,894,798.19
  5. Step 5: Solve for x
    x = 11,165,894,798.19/118,983.49
  6. Step 6: Final answer
    x = 93,844.07

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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.