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Finding the Fourth Proportional to 209,682.40, 314,523.60 and 162,968.80

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Solution

The fourth proportional to 209,682.40, 314,523.60 and 162,968.80 is: 244,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,682.40 : 314,523.60 = 162,968.80 : x
  2. Step 2: Convert to fraction form
    209,682.40/314,523.60 = 162,968.80/x
  3. Step 3: Cross multiply
    209,682.40x = 314,523.60 × 162,968.80
  4. Step 4: Simplify right side
    209,682.40x = 51,257,533,663.68
  5. Step 5: Solve for x
    x = 51,257,533,663.68/209,682.40
  6. Step 6: Final answer
    x = 244,453.20

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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.