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Finding the Fourth Proportional to 117,211, 161,751.02 and 63,496.23

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Solution

The fourth proportional to 117,211, 161,751.02 and 63,496.23 is: 87,624.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,211 : 161,751.02 = 63,496.23 : x
  2. Step 2: Convert to fraction form
    117,211/161,751.02 = 63,496.23/x
  3. Step 3: Cross multiply
    117,211x = 161,751.02 × 63,496.23
  4. Step 4: Simplify right side
    117,211x = 10,270,579,968.65
  5. Step 5: Solve for x
    x = 10,270,579,968.65/117,211
  6. Step 6: Final answer
    x = 87,624.71

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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.