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Finding the Fourth Proportional to 201,089,202.80, 301,783,103.40 and 80,007,551.60

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Solution

The fourth proportional to 201,089,202.80, 301,783,103.40 and 80,007,551.60 is: 120,070,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,089,202.80 : 301,783,103.40 = 80,007,551.60 : x
  2. Step 2: Convert to fraction form
    201,089,202.80/301,783,103.40 = 80,007,551.60/x
  3. Step 3: Cross multiply
    201,089,202.80x = 301,783,103.40 × 80,007,551.60
  4. Step 4: Simplify right side
    201,089,202.80x = 24,144,927,217,283,632
  5. Step 5: Solve for x
    x = 24,144,927,217,283,632/201,089,202.80
  6. Step 6: Final answer
    x = 120,070,729.21

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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.