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Finding the Fourth Proportional to 213,263,558.90, 298,972,090.30 and 213,263,558.90

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Solution

The fourth proportional to 213,263,558.90, 298,972,090.30 and 213,263,558.90 is: 298,972,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,263,558.90 : 298,972,090.30 = 213,263,558.90 : x
  2. Step 2: Convert to fraction form
    213,263,558.90/298,972,090.30 = 213,263,558.90/x
  3. Step 3: Cross multiply
    213,263,558.90x = 298,972,090.30 × 213,263,558.90
  4. Step 4: Simplify right side
    213,263,558.90x = 63,759,851,989,150,176
  5. Step 5: Solve for x
    x = 63,759,851,989,150,176/213,263,558.90
  6. Step 6: Final answer
    x = 298,972,090.30

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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.