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Finding the Fourth Proportional to 164,964,272.40, 247,446,408.60 and 162,413,355.60

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Solution

The fourth proportional to 164,964,272.40, 247,446,408.60 and 162,413,355.60 is: 243,620,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,964,272.40 : 247,446,408.60 = 162,413,355.60 : x
  2. Step 2: Convert to fraction form
    164,964,272.40/247,446,408.60 = 162,413,355.60/x
  3. Step 3: Cross multiply
    164,964,272.40x = 247,446,408.60 × 162,413,355.60
  4. Step 4: Simplify right side
    164,964,272.40x = 40,188,601,551,894,696
  5. Step 5: Solve for x
    x = 40,188,601,551,894,696/164,964,272.40
  6. Step 6: Final answer
    x = 243,620,033.40

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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.