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Finding the Fourth Proportional to 168,816,015.70, 236,879,899.10 and 168,816,015.70

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Solution

The fourth proportional to 168,816,015.70, 236,879,899.10 and 168,816,015.70 is: 236,879,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,816,015.70 : 236,879,899.10 = 168,816,015.70 : x
  2. Step 2: Convert to fraction form
    168,816,015.70/236,879,899.10 = 168,816,015.70/x
  3. Step 3: Cross multiply
    168,816,015.70x = 236,879,899.10 × 168,816,015.70
  4. Step 4: Simplify right side
    168,816,015.70x = 39,989,120,765,480,016
  5. Step 5: Solve for x
    x = 39,989,120,765,480,016/168,816,015.70
  6. Step 6: Final answer
    x = 236,879,899.10

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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.