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Finding the Fourth Proportional to 122,133,998.70, 183,200,998.05 and 64,738,370.70

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Solution

The fourth proportional to 122,133,998.70, 183,200,998.05 and 64,738,370.70 is: 97,107,556.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,133,998.70 : 183,200,998.05 = 64,738,370.70 : x
  2. Step 2: Convert to fraction form
    122,133,998.70/183,200,998.05 = 64,738,370.70/x
  3. Step 3: Cross multiply
    122,133,998.70x = 183,200,998.05 × 64,738,370.70
  4. Step 4: Simplify right side
    122,133,998.70x = 11,860,134,124,370,878
  5. Step 5: Solve for x
    x = 11,860,134,124,370,878/122,133,998.70
  6. Step 6: Final answer
    x = 97,107,556.05

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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.