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Finding the Fourth Proportional to 219,676.41, 329,485.46 and 86,522.13

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Solution

The fourth proportional to 219,676.41, 329,485.46 and 86,522.13 is: 129,771.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,676.41 : 329,485.46 = 86,522.13 : x
  2. Step 2: Convert to fraction form
    219,676.41/329,485.46 = 86,522.13/x
  3. Step 3: Cross multiply
    219,676.41x = 329,485.46 × 86,522.13
  4. Step 4: Simplify right side
    219,676.41x = 28,507,783,370.62
  5. Step 5: Solve for x
    x = 28,507,783,370.62/219,676.41
  6. Step 6: Final answer
    x = 129,771.71

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1.5x scale

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.