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Finding the Fourth Proportional to 373,543.87, 515,450.80 and 210,197.53

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Solution

The fourth proportional to 373,543.87, 515,450.80 and 210,197.53 is: 290,050.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,543.87 : 515,450.80 = 210,197.53 : x
  2. Step 2: Convert to fraction form
    373,543.87/515,450.80 = 210,197.53/x
  3. Step 3: Cross multiply
    373,543.87x = 515,450.80 × 210,197.53
  4. Step 4: Simplify right side
    373,543.87x = 108,346,485,115.34
  5. Step 5: Solve for x
    x = 108,346,485,115.34/373,543.87
  6. Step 6: Final answer
    x = 290,050.23

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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.