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Finding the Fourth Proportional to 79,507,205.80, 119,197,823.10 and 43,605,413.80

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Solution

The fourth proportional to 79,507,205.80, 119,197,823.10 and 43,605,413.80 is: 65,373,576.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,507,205.80 : 119,197,823.10 = 43,605,413.80 : x
  2. Step 2: Convert to fraction form
    79,507,205.80/119,197,823.10 = 43,605,413.80/x
  3. Step 3: Cross multiply
    79,507,205.80x = 119,197,823.10 × 43,605,413.80
  4. Step 4: Simplify right side
    79,507,205.80x = 5,197,670,400,334,698
  5. Step 5: Solve for x
    x = 5,197,670,400,334,698/79,507,205.80
  6. Step 6: Final answer
    x = 65,373,576.50

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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.