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Finding the Fourth Proportional to 329,763,920.72, 494,661,788.69 and 108,430,360.30

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Solution

The fourth proportional to 329,763,920.72, 494,661,788.69 and 108,430,360.30 is: 162,650,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,763,920.72 : 494,661,788.69 = 108,430,360.30 : x
  2. Step 2: Convert to fraction form
    329,763,920.72/494,661,788.69 = 108,430,360.30/x
  3. Step 3: Cross multiply
    329,763,920.72x = 494,661,788.69 × 108,430,360.30
  4. Step 4: Simplify right side
    329,763,920.72x = 53,636,355,973,294,368
  5. Step 5: Solve for x
    x = 53,636,355,973,294,368/329,763,920.72
  6. Step 6: Final answer
    x = 162,650,771.06

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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.