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Finding the Fourth Proportional to 104,978,648.40, 157,467,972.60 and 98,601,356.40

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Solution

The fourth proportional to 104,978,648.40, 157,467,972.60 and 98,601,356.40 is: 147,902,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,978,648.40 : 157,467,972.60 = 98,601,356.40 : x
  2. Step 2: Convert to fraction form
    104,978,648.40/157,467,972.60 = 98,601,356.40/x
  3. Step 3: Cross multiply
    104,978,648.40x = 157,467,972.60 × 98,601,356.40
  4. Step 4: Simplify right side
    104,978,648.40x = 15,526,555,687,918,034
  5. Step 5: Solve for x
    x = 15,526,555,687,918,034/104,978,648.40
  6. Step 6: Final answer
    x = 147,902,034.60

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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.