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Finding the Fourth Proportional to 69,534,438.80, 104,301,658.20 and 50,660,070.80

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Solution

The fourth proportional to 69,534,438.80, 104,301,658.20 and 50,660,070.80 is: 75,990,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,534,438.80 : 104,301,658.20 = 50,660,070.80 : x
  2. Step 2: Convert to fraction form
    69,534,438.80/104,301,658.20 = 50,660,070.80/x
  3. Step 3: Cross multiply
    69,534,438.80x = 104,301,658.20 × 50,660,070.80
  4. Step 4: Simplify right side
    69,534,438.80x = 5,283,929,388,969,400
  5. Step 5: Solve for x
    x = 5,283,929,388,969,400/69,534,438.80
  6. Step 6: Final answer
    x = 75,990,106.20

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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.