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Finding the Fourth Proportional to 355,093,686, 532,640,529 and 99,792,054

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Solution

The fourth proportional to 355,093,686, 532,640,529 and 99,792,054 is: 149,688,081

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,093,686 : 532,640,529 = 99,792,054 : x
  2. Step 2: Convert to fraction form
    355,093,686/532,640,529 = 99,792,054/x
  3. Step 3: Cross multiply
    355,093,686x = 532,640,529 × 99,792,054
  4. Step 4: Simplify right side
    355,093,686x = 53,153,292,432,556,568
  5. Step 5: Solve for x
    x = 53,153,292,432,556,568/355,093,686
  6. Step 6: Final answer
    x = 149,688,081

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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.