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Finding the Fourth Proportional to 351,217.88, 526,808.31 and 98,515.83

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Solution

The fourth proportional to 351,217.88, 526,808.31 and 98,515.83 is: 147,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,217.88 : 526,808.31 = 98,515.83 : x
  2. Step 2: Convert to fraction form
    351,217.88/526,808.31 = 98,515.83/x
  3. Step 3: Cross multiply
    351,217.88x = 526,808.31 × 98,515.83
  4. Step 4: Simplify right side
    351,217.88x = 51,898,957,910.55
  5. Step 5: Solve for x
    x = 51,898,957,910.55/351,217.88
  6. Step 6: Final answer
    x = 147,768.56

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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.