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Finding the Fourth Proportional to 221,616,615.60, 332,424,923.40 and 147,640,028.40

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Solution

The fourth proportional to 221,616,615.60, 332,424,923.40 and 147,640,028.40 is: 221,460,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,616,615.60 : 332,424,923.40 = 147,640,028.40 : x
  2. Step 2: Convert to fraction form
    221,616,615.60/332,424,923.40 = 147,640,028.40/x
  3. Step 3: Cross multiply
    221,616,615.60x = 332,424,923.40 × 147,640,028.40
  4. Step 4: Simplify right side
    221,616,615.60x = 49,079,225,131,643,824
  5. Step 5: Solve for x
    x = 49,079,225,131,643,824/221,616,615.60
  6. Step 6: Final answer
    x = 221,460,042.60

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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.