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Finding the Fourth Proportional to 357,793.76, 536,709.24 and 91,556.72

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Solution

The fourth proportional to 357,793.76, 536,709.24 and 91,556.72 is: 137,339.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,793.76 : 536,709.24 = 91,556.72 : x
  2. Step 2: Convert to fraction form
    357,793.76/536,709.24 = 91,556.72/x
  3. Step 3: Cross multiply
    357,793.76x = 536,709.24 × 91,556.72
  4. Step 4: Simplify right side
    357,793.76x = 49,139,337,608.09
  5. Step 5: Solve for x
    x = 49,139,337,608.09/357,793.76
  6. Step 6: Final answer
    x = 137,339.84

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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.