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Finding the Fourth Proportional to 177,647,923.20, 266,471,884.80 and 101,120,419.20

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Solution

The fourth proportional to 177,647,923.20, 266,471,884.80 and 101,120,419.20 is: 151,680,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,647,923.20 : 266,471,884.80 = 101,120,419.20 : x
  2. Step 2: Convert to fraction form
    177,647,923.20/266,471,884.80 = 101,120,419.20/x
  3. Step 3: Cross multiply
    177,647,923.20x = 266,471,884.80 × 101,120,419.20
  4. Step 4: Simplify right side
    177,647,923.20x = 26,945,748,695,990,112
  5. Step 5: Solve for x
    x = 26,945,748,695,990,112/177,647,923.20
  6. Step 6: Final answer
    x = 151,680,628.80

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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.