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Finding the Fourth Proportional to 351,333.63, 526,891.50 and 126,665.01

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Solution

The fourth proportional to 351,333.63, 526,891.50 and 126,665.01 is: 189,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,333.63 : 526,891.50 = 126,665.01 : x
  2. Step 2: Convert to fraction form
    351,333.63/526,891.50 = 126,665.01/x
  3. Step 3: Cross multiply
    351,333.63x = 526,891.50 × 126,665.01
  4. Step 4: Simplify right side
    351,333.63x = 66,738,717,116.42
  5. Step 5: Solve for x
    x = 66,738,717,116.42/351,333.63
  6. Step 6: Final answer
    x = 189,958.24

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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.