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Finding the Fourth Proportional to 117,596.73, 176,622 and 100,767.78

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Solution

The fourth proportional to 117,596.73, 176,622 and 100,767.78 is: 151,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,596.73 : 176,622 = 100,767.78 : x
  2. Step 2: Convert to fraction form
    117,596.73/176,622 = 100,767.78/x
  3. Step 3: Cross multiply
    117,596.73x = 176,622 × 100,767.78
  4. Step 4: Simplify right side
    117,596.73x = 17,797,806,839.16
  5. Step 5: Solve for x
    x = 17,797,806,839.16/117,596.73
  6. Step 6: Final answer
    x = 151,346.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.