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Finding the Fourth Proportional to 79,261,696.80, 118,703,588.40 and 79,261,696.80

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Solution

The fourth proportional to 79,261,696.80, 118,703,588.40 and 79,261,696.80 is: 118,703,588.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261,696.80 : 118,703,588.40 = 79,261,696.80 : x
  2. Step 2: Convert to fraction form
    79,261,696.80/118,703,588.40 = 79,261,696.80/x
  3. Step 3: Cross multiply
    79,261,696.80x = 118,703,588.40 × 79,261,696.80
  4. Step 4: Simplify right side
    79,261,696.80x = 9,408,647,832,832,798
  5. Step 5: Solve for x
    x = 9,408,647,832,832,798/79,261,696.80
  6. Step 6: Final answer
    x = 118,703,588.40

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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.