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Finding the Fourth Proportional to 122,510,440.90, 171,642,163.10 and 122,510,440.90

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Solution

The fourth proportional to 122,510,440.90, 171,642,163.10 and 122,510,440.90 is: 171,642,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,510,440.90 : 171,642,163.10 = 122,510,440.90 : x
  2. Step 2: Convert to fraction form
    122,510,440.90/171,642,163.10 = 122,510,440.90/x
  3. Step 3: Cross multiply
    122,510,440.90x = 171,642,163.10 × 122,510,440.90
  4. Step 4: Simplify right side
    122,510,440.90x = 21,027,957,078,410,712
  5. Step 5: Solve for x
    x = 21,027,957,078,410,712/122,510,440.90
  6. Step 6: Final answer
    x = 171,642,163.10

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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.