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Finding the Fourth Proportional to 122,408,508.60, 171,598,660.20 and 122,408,508.60

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Solution

The fourth proportional to 122,408,508.60, 171,598,660.20 and 122,408,508.60 is: 171,598,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,408,508.60 : 171,598,660.20 = 122,408,508.60 : x
  2. Step 2: Convert to fraction form
    122,408,508.60/171,598,660.20 = 122,408,508.60/x
  3. Step 3: Cross multiply
    122,408,508.60x = 171,598,660.20 × 122,408,508.60
  4. Step 4: Simplify right side
    122,408,508.60x = 21,005,136,072,840,176
  5. Step 5: Solve for x
    x = 21,005,136,072,840,176/122,408,508.60
  6. Step 6: Final answer
    x = 171,598,660.20

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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.