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Finding the Fourth Proportional to 104,978,660.90, 157,467,991.35 and 98,601,368.90

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Solution

The fourth proportional to 104,978,660.90, 157,467,991.35 and 98,601,368.90 is: 147,902,053.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,978,660.90 : 157,467,991.35 = 98,601,368.90 : x
  2. Step 2: Convert to fraction form
    104,978,660.90/157,467,991.35 = 98,601,368.90/x
  3. Step 3: Cross multiply
    104,978,660.90x = 157,467,991.35 × 98,601,368.90
  4. Step 4: Simplify right side
    104,978,660.90x = 15,526,559,505,043,360
  5. Step 5: Solve for x
    x = 15,526,559,505,043,360/104,978,660.90
  6. Step 6: Final answer
    x = 147,902,053.35

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1.5x scale

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.