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Finding the Fourth Proportional to 199,323.60, 298,920.60 and 66,181.20

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Solution

The fourth proportional to 199,323.60, 298,920.60 and 66,181.20 is: 99,250.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,323.60 : 298,920.60 = 66,181.20 : x
  2. Step 2: Convert to fraction form
    199,323.60/298,920.60 = 66,181.20/x
  3. Step 3: Cross multiply
    199,323.60x = 298,920.60 × 66,181.20
  4. Step 4: Simplify right side
    199,323.60x = 19,782,924,012.72
  5. Step 5: Solve for x
    x = 19,782,924,012.72/199,323.60
  6. Step 6: Final answer
    x = 99,250.28

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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.