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Finding the Fourth Proportional to 69,534,515.80, 104,301,773.70 and 50,660,147.80

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Solution

The fourth proportional to 69,534,515.80, 104,301,773.70 and 50,660,147.80 is: 75,990,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,534,515.80 : 104,301,773.70 = 50,660,147.80 : x
  2. Step 2: Convert to fraction form
    69,534,515.80/104,301,773.70 = 50,660,147.80/x
  3. Step 3: Cross multiply
    69,534,515.80x = 104,301,773.70 × 50,660,147.80
  4. Step 4: Simplify right side
    69,534,515.80x = 5,283,943,271,444,153
  5. Step 5: Solve for x
    x = 5,283,943,271,444,153/69,534,515.80
  6. Step 6: Final answer
    x = 75,990,221.70

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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.