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Finding the Fourth Proportional to 298,462.74, 447,742.74 and 88,121.94

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Solution

The fourth proportional to 298,462.74, 447,742.74 and 88,121.94 is: 132,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,462.74 : 447,742.74 = 88,121.94 : x
  2. Step 2: Convert to fraction form
    298,462.74/447,742.74 = 88,121.94/x
  3. Step 3: Cross multiply
    298,462.74x = 447,742.74 × 88,121.94
  4. Step 4: Simplify right side
    298,462.74x = 39,455,958,869.72
  5. Step 5: Solve for x
    x = 39,455,958,869.72/298,462.74
  6. Step 6: Final answer
    x = 132,197.27

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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.