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Finding the Fourth Proportional to 221,696,009.20, 332,544,013.80 and 167,948,297.20

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Solution

The fourth proportional to 221,696,009.20, 332,544,013.80 and 167,948,297.20 is: 251,922,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,696,009.20 : 332,544,013.80 = 167,948,297.20 : x
  2. Step 2: Convert to fraction form
    221,696,009.20/332,544,013.80 = 167,948,297.20/x
  3. Step 3: Cross multiply
    221,696,009.20x = 332,544,013.80 × 167,948,297.20
  4. Step 4: Simplify right side
    221,696,009.20x = 55,850,200,861,763,296
  5. Step 5: Solve for x
    x = 55,850,200,861,763,296/221,696,009.20
  6. Step 6: Final answer
    x = 251,922,445.80

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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.