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Finding the Fourth Proportional to 116,375.70, 174,563.26 and 30,986.58

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Solution

The fourth proportional to 116,375.70, 174,563.26 and 30,986.58 is: 46,479.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,375.70 : 174,563.26 = 30,986.58 : x
  2. Step 2: Convert to fraction form
    116,375.70/174,563.26 = 30,986.58/x
  3. Step 3: Cross multiply
    116,375.70x = 174,563.26 × 30,986.58
  4. Step 4: Simplify right side
    116,375.70x = 5,409,118,421.05
  5. Step 5: Solve for x
    x = 5,409,118,421.05/116,375.70
  6. Step 6: Final answer
    x = 46,479.79

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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.