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Finding the Fourth Proportional to 383,855.60, 575,872.01 and 113,977.74

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Solution

The fourth proportional to 383,855.60, 575,872.01 and 113,977.74 is: 170,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,855.60 : 575,872.01 = 113,977.74 : x
  2. Step 2: Convert to fraction form
    383,855.60/575,872.01 = 113,977.74/x
  3. Step 3: Cross multiply
    383,855.60x = 575,872.01 × 113,977.74
  4. Step 4: Simplify right side
    383,855.60x = 65,636,588,267.92
  5. Step 5: Solve for x
    x = 65,636,588,267.92/383,855.60
  6. Step 6: Final answer
    x = 170,992.92

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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.