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Finding the Fourth Proportional to 118,972.73, 164,186.97 and 65,260.01

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Solution

The fourth proportional to 118,972.73, 164,186.97 and 65,260.01 is: 90,061.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,972.73 : 164,186.97 = 65,260.01 : x
  2. Step 2: Convert to fraction form
    118,972.73/164,186.97 = 65,260.01/x
  3. Step 3: Cross multiply
    118,972.73x = 164,186.97 × 65,260.01
  4. Step 4: Simplify right side
    118,972.73x = 10,714,843,469.81
  5. Step 5: Solve for x
    x = 10,714,843,469.81/118,972.73
  6. Step 6: Final answer
    x = 90,061.34

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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.