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Finding the Fourth Proportional to 374,495,728.80, 561,743,593.20 and 193,097,200.80

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Solution

The fourth proportional to 374,495,728.80, 561,743,593.20 and 193,097,200.80 is: 289,645,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,495,728.80 : 561,743,593.20 = 193,097,200.80 : x
  2. Step 2: Convert to fraction form
    374,495,728.80/561,743,593.20 = 193,097,200.80/x
  3. Step 3: Cross multiply
    374,495,728.80x = 561,743,593.20 × 193,097,200.80
  4. Step 4: Simplify right side
    374,495,728.80x = 108,471,115,414,253,936
  5. Step 5: Solve for x
    x = 108,471,115,414,253,936/374,495,728.80
  6. Step 6: Final answer
    x = 289,645,801.20

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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.