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Finding the Fourth Proportional to 350,930.81, 526,396.07 and 137,799.02

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Solution

The fourth proportional to 350,930.81, 526,396.07 and 137,799.02 is: 206,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,930.81 : 526,396.07 = 137,799.02 : x
  2. Step 2: Convert to fraction form
    350,930.81/526,396.07 = 137,799.02/x
  3. Step 3: Cross multiply
    350,930.81x = 526,396.07 × 137,799.02
  4. Step 4: Simplify right side
    350,930.81x = 72,536,864,238.34
  5. Step 5: Solve for x
    x = 72,536,864,238.34/350,930.81
  6. Step 6: Final answer
    x = 206,698.48

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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.