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Finding the Fourth Proportional to 168,507,211.30, 236,590,340.30 and 168,507,211.30

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Solution

The fourth proportional to 168,507,211.30, 236,590,340.30 and 168,507,211.30 is: 236,590,340.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,507,211.30 : 236,590,340.30 = 168,507,211.30 : x
  2. Step 2: Convert to fraction form
    168,507,211.30/236,590,340.30 = 168,507,211.30/x
  3. Step 3: Cross multiply
    168,507,211.30x = 236,590,340.30 × 168,507,211.30
  4. Step 4: Simplify right side
    168,507,211.30x = 39,867,178,464,471,008
  5. Step 5: Solve for x
    x = 39,867,178,464,471,008/168,507,211.30
  6. Step 6: Final answer
    x = 236,590,340.30

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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.