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Finding the Fourth Proportional to 352,649.10, 529,200.45 and 194,990.70

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Solution

The fourth proportional to 352,649.10, 529,200.45 and 194,990.70 is: 292,611.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,649.10 : 529,200.45 = 194,990.70 : x
  2. Step 2: Convert to fraction form
    352,649.10/529,200.45 = 194,990.70/x
  3. Step 3: Cross multiply
    352,649.10x = 529,200.45 × 194,990.70
  4. Step 4: Simplify right side
    352,649.10x = 103,189,166,185.82
  5. Step 5: Solve for x
    x = 103,189,166,185.82/352,649.10
  6. Step 6: Final answer
    x = 292,611.45

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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.