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Finding the Fourth Proportional to 215,303.40, 322,165.22 and 179,676.77

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Solution

The fourth proportional to 215,303.40, 322,165.22 and 179,676.77 is: 268,855.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,303.40 : 322,165.22 = 179,676.77 : x
  2. Step 2: Convert to fraction form
    215,303.40/322,165.22 = 179,676.77/x
  3. Step 3: Cross multiply
    215,303.40x = 322,165.22 × 179,676.77
  4. Step 4: Simplify right side
    215,303.40x = 57,885,603,626.73
  5. Step 5: Solve for x
    x = 57,885,603,626.73/215,303.40
  6. Step 6: Final answer
    x = 268,855.97

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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.