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Finding the Fourth Proportional to 223,991,330.80, 335,986,996.20 and 178,641,698.80

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Solution

The fourth proportional to 223,991,330.80, 335,986,996.20 and 178,641,698.80 is: 267,962,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,991,330.80 : 335,986,996.20 = 178,641,698.80 : x
  2. Step 2: Convert to fraction form
    223,991,330.80/335,986,996.20 = 178,641,698.80/x
  3. Step 3: Cross multiply
    223,991,330.80x = 335,986,996.20 × 178,641,698.80
  4. Step 4: Simplify right side
    223,991,330.80x = 60,021,287,775,877,144
  5. Step 5: Solve for x
    x = 60,021,287,775,877,144/223,991,330.80
  6. Step 6: Final answer
    x = 267,962,548.20

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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.