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Finding the Fourth Proportional to 352,563.70, 486,543.60 and 199,597.90

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Solution

The fourth proportional to 352,563.70, 486,543.60 and 199,597.90 is: 275,448.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,563.70 : 486,543.60 = 199,597.90 : x
  2. Step 2: Convert to fraction form
    352,563.70/486,543.60 = 199,597.90/x
  3. Step 3: Cross multiply
    352,563.70x = 486,543.60 × 199,597.90
  4. Step 4: Simplify right side
    352,563.70x = 97,113,080,818.44
  5. Step 5: Solve for x
    x = 97,113,080,818.44/352,563.70
  6. Step 6: Final answer
    x = 275,448.33

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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.