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Finding the Fourth Proportional to 118,837,846.80, 166,486,359.60 and 118,837,846.80

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Solution

The fourth proportional to 118,837,846.80, 166,486,359.60 and 118,837,846.80 is: 166,486,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,837,846.80 : 166,486,359.60 = 118,837,846.80 : x
  2. Step 2: Convert to fraction form
    118,837,846.80/166,486,359.60 = 118,837,846.80/x
  3. Step 3: Cross multiply
    118,837,846.80x = 166,486,359.60 × 118,837,846.80
  4. Step 4: Simplify right side
    118,837,846.80x = 19,784,880,496,434,508
  5. Step 5: Solve for x
    x = 19,784,880,496,434,508/118,837,846.80
  6. Step 6: Final answer
    x = 166,486,359.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.