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Finding the Fourth Proportional to 383,404.74, 575,363.07 and 134,086.74

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Solution

The fourth proportional to 383,404.74, 575,363.07 and 134,086.74 is: 201,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,404.74 : 575,363.07 = 134,086.74 : x
  2. Step 2: Convert to fraction form
    383,404.74/575,363.07 = 134,086.74/x
  3. Step 3: Cross multiply
    383,404.74x = 575,363.07 × 134,086.74
  4. Step 4: Simplify right side
    383,404.74x = 77,148,558,372.69
  5. Step 5: Solve for x
    x = 77,148,558,372.69/383,404.74
  6. Step 6: Final answer
    x = 201,219.63

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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.