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Finding the Fourth Proportional to 91,879,792.90, 126,799,762.17 and 50,626,674.34

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Solution

The fourth proportional to 91,879,792.90, 126,799,762.17 and 50,626,674.34 is: 69,867,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,879,792.90 : 126,799,762.17 = 50,626,674.34 : x
  2. Step 2: Convert to fraction form
    91,879,792.90/126,799,762.17 = 50,626,674.34/x
  3. Step 3: Cross multiply
    91,879,792.90x = 126,799,762.17 × 50,626,674.34
  4. Step 4: Simplify right side
    91,879,792.90x = 6,419,450,265,770,042
  5. Step 5: Solve for x
    x = 6,419,450,265,770,042/91,879,792.90
  6. Step 6: Final answer
    x = 69,867,922.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.