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Finding the Fourth Proportional to 331,052.90, 496,579.35 and 109,436.90

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Solution

The fourth proportional to 331,052.90, 496,579.35 and 109,436.90 is: 164,155.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,052.90 : 496,579.35 = 109,436.90 : x
  2. Step 2: Convert to fraction form
    331,052.90/496,579.35 = 109,436.90/x
  3. Step 3: Cross multiply
    331,052.90x = 496,579.35 × 109,436.90
  4. Step 4: Simplify right side
    331,052.90x = 54,344,104,668.02
  5. Step 5: Solve for x
    x = 54,344,104,668.02/331,052.90
  6. Step 6: Final answer
    x = 164,155.35

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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.