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Finding the Fourth Proportional to 351,051.88, 484,450.14 and 189,906.55

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Solution

The fourth proportional to 351,051.88, 484,450.14 and 189,906.55 is: 262,070.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,051.88 : 484,450.14 = 189,906.55 : x
  2. Step 2: Convert to fraction form
    351,051.88/484,450.14 = 189,906.55/x
  3. Step 3: Cross multiply
    351,051.88x = 484,450.14 × 189,906.55
  4. Step 4: Simplify right side
    351,051.88x = 92,000,254,734.42
  5. Step 5: Solve for x
    x = 92,000,254,734.42/351,051.88
  6. Step 6: Final answer
    x = 262,070.25

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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.