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Finding the Fourth Proportional to 117,718.63, 175,469.00 and 108,270.79

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Solution

The fourth proportional to 117,718.63, 175,469.00 and 108,270.79 is: 161,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,718.63 : 175,469.00 = 108,270.79 : x
  2. Step 2: Convert to fraction form
    117,718.63/175,469.00 = 108,270.79/x
  3. Step 3: Cross multiply
    117,718.63x = 175,469.00 × 108,270.79
  4. Step 4: Simplify right side
    117,718.63x = 18,998,166,270.48
  5. Step 5: Solve for x
    x = 18,998,166,270.48/117,718.63
  6. Step 6: Final answer
    x = 161,386.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.