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Finding the Fourth Proportional to 351,052.88, 484,451.52 and 189,907.55

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Solution

The fourth proportional to 351,052.88, 484,451.52 and 189,907.55 is: 262,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,052.88 : 484,451.52 = 189,907.55 : x
  2. Step 2: Convert to fraction form
    351,052.88/484,451.52 = 189,907.55/x
  3. Step 3: Cross multiply
    351,052.88x = 484,451.52 × 189,907.55
  4. Step 4: Simplify right side
    351,052.88x = 92,001,001,256.98
  5. Step 5: Solve for x
    x = 92,001,001,256.98/351,052.88
  6. Step 6: Final answer
    x = 262,071.63

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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.