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Finding the Fourth Proportional to 79,247,615.80, 118,682,466.90 and 79,247,615.80

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Solution

The fourth proportional to 79,247,615.80, 118,682,466.90 and 79,247,615.80 is: 118,682,466.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,247,615.80 : 118,682,466.90 = 79,247,615.80 : x
  2. Step 2: Convert to fraction form
    79,247,615.80/118,682,466.90 = 79,247,615.80/x
  3. Step 3: Cross multiply
    79,247,615.80x = 118,682,466.90 × 79,247,615.80
  4. Step 4: Simplify right side
    79,247,615.80x = 9,405,302,539,087,418
  5. Step 5: Solve for x
    x = 9,405,302,539,087,418/79,247,615.80
  6. Step 6: Final answer
    x = 118,682,466.90

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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.