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Finding the Fourth Proportional to 104,978,611.70, 157,467,917.55 and 98,601,319.70

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Solution

The fourth proportional to 104,978,611.70, 157,467,917.55 and 98,601,319.70 is: 147,901,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,978,611.70 : 157,467,917.55 = 98,601,319.70 : x
  2. Step 2: Convert to fraction form
    104,978,611.70/157,467,917.55 = 98,601,319.70/x
  3. Step 3: Cross multiply
    104,978,611.70x = 157,467,917.55 × 98,601,319.70
  4. Step 4: Simplify right side
    104,978,611.70x = 15,526,544,480,840,792
  5. Step 5: Solve for x
    x = 15,526,544,480,840,792/104,978,611.70
  6. Step 6: Final answer
    x = 147,901,979.55

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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.