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Finding the Fourth Proportional to 332,647.70, 498,862.20 and 122,258.30

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Solution

The fourth proportional to 332,647.70, 498,862.20 and 122,258.30 is: 183,347.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,647.70 : 498,862.20 = 122,258.30 : x
  2. Step 2: Convert to fraction form
    332,647.70/498,862.20 = 122,258.30/x
  3. Step 3: Cross multiply
    332,647.70x = 498,862.20 × 122,258.30
  4. Step 4: Simplify right side
    332,647.70x = 60,990,044,506.26
  5. Step 5: Solve for x
    x = 60,990,044,506.26/332,647.70
  6. Step 6: Final answer
    x = 183,347.26

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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.