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Finding the Fourth Proportional to 221,745.48, 332,466.40 and 79,587.60

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Solution

The fourth proportional to 221,745.48, 332,466.40 and 79,587.60 is: 119,326.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,745.48 : 332,466.40 = 79,587.60 : x
  2. Step 2: Convert to fraction form
    221,745.48/332,466.40 = 79,587.60/x
  3. Step 3: Cross multiply
    221,745.48x = 332,466.40 × 79,587.60
  4. Step 4: Simplify right side
    221,745.48x = 26,460,202,856.64
  5. Step 5: Solve for x
    x = 26,460,202,856.64/221,745.48
  6. Step 6: Final answer
    x = 119,326.91

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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.