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Finding the Fourth Proportional to 350,808.64, 526,240.32 and 126,198.28

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Solution

The fourth proportional to 350,808.64, 526,240.32 and 126,198.28 is: 189,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,808.64 : 526,240.32 = 126,198.28 : x
  2. Step 2: Convert to fraction form
    350,808.64/526,240.32 = 126,198.28/x
  3. Step 3: Cross multiply
    350,808.64x = 526,240.32 × 126,198.28
  4. Step 4: Simplify right side
    350,808.64x = 66,410,623,250.65
  5. Step 5: Solve for x
    x = 66,410,623,250.65/350,808.64
  6. Step 6: Final answer
    x = 189,307.26

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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.