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Finding the Fourth Proportional to 336,809,581.80, 505,214,372.70 and 164,396,999.40

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Solution

The fourth proportional to 336,809,581.80, 505,214,372.70 and 164,396,999.40 is: 246,595,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,809,581.80 : 505,214,372.70 = 164,396,999.40 : x
  2. Step 2: Convert to fraction form
    336,809,581.80/505,214,372.70 = 164,396,999.40/x
  3. Step 3: Cross multiply
    336,809,581.80x = 505,214,372.70 × 164,396,999.40
  4. Step 4: Simplify right side
    336,809,581.80x = 83,055,726,925,633,280
  5. Step 5: Solve for x
    x = 83,055,726,925,633,280/336,809,581.80
  6. Step 6: Final answer
    x = 246,595,499.10

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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.