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Finding the Fourth Proportional to 351,222.75, 526,815.56 and 98,520.77

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Solution

The fourth proportional to 351,222.75, 526,815.56 and 98,520.77 is: 147,775.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,222.75 : 526,815.56 = 98,520.77 : x
  2. Step 2: Convert to fraction form
    351,222.75/526,815.56 = 98,520.77/x
  3. Step 3: Cross multiply
    351,222.75x = 526,815.56 × 98,520.77
  4. Step 4: Simplify right side
    351,222.75x = 51,902,276,182.52
  5. Step 5: Solve for x
    x = 51,902,276,182.52/351,222.75
  6. Step 6: Final answer
    x = 147,775.95

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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.