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Finding the Fourth Proportional to 353,603.85, 530,408.07 and 100,883.76

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Solution

The fourth proportional to 353,603.85, 530,408.07 and 100,883.76 is: 151,326.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,603.85 : 530,408.07 = 100,883.76 : x
  2. Step 2: Convert to fraction form
    353,603.85/530,408.07 = 100,883.76/x
  3. Step 3: Cross multiply
    353,603.85x = 530,408.07 × 100,883.76
  4. Step 4: Simplify right side
    353,603.85x = 53,509,560,435.94
  5. Step 5: Solve for x
    x = 53,509,560,435.94/353,603.85
  6. Step 6: Final answer
    x = 151,326.29

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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.