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Finding the Fourth Proportional to 219,773,982.40, 329,377,538.40 and 168,401,352.40

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Solution

The fourth proportional to 219,773,982.40, 329,377,538.40 and 168,401,352.40 is: 252,384,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,773,982.40 : 329,377,538.40 = 168,401,352.40 : x
  2. Step 2: Convert to fraction form
    219,773,982.40/329,377,538.40 = 168,401,352.40/x
  3. Step 3: Cross multiply
    219,773,982.40x = 329,377,538.40 × 168,401,352.40
  4. Step 4: Simplify right side
    219,773,982.40x = 55,467,622,916,742,928
  5. Step 5: Solve for x
    x = 55,467,622,916,742,928/219,773,982.40
  6. Step 6: Final answer
    x = 252,384,846.97

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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.