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Finding the Fourth Proportional to 216,747.09, 325,121.11 and 116,954.28

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Solution

The fourth proportional to 216,747.09, 325,121.11 and 116,954.28 is: 175,431.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,747.09 : 325,121.11 = 116,954.28 : x
  2. Step 2: Convert to fraction form
    216,747.09/325,121.11 = 116,954.28/x
  3. Step 3: Cross multiply
    216,747.09x = 325,121.11 × 116,954.28
  4. Step 4: Simplify right side
    216,747.09x = 38,024,305,040.47
  5. Step 5: Solve for x
    x = 38,024,305,040.47/216,747.09
  6. Step 6: Final answer
    x = 175,431.67

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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.