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Finding the Fourth Proportional to 98,190.40, 147,285.60 and 35,905.60

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Solution

The fourth proportional to 98,190.40, 147,285.60 and 35,905.60 is: 53,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,190.40 : 147,285.60 = 35,905.60 : x
  2. Step 2: Convert to fraction form
    98,190.40/147,285.60 = 35,905.60/x
  3. Step 3: Cross multiply
    98,190.40x = 147,285.60 × 35,905.60
  4. Step 4: Simplify right side
    98,190.40x = 5,288,377,839.36
  5. Step 5: Solve for x
    x = 5,288,377,839.36/98,190.40
  6. Step 6: Final answer
    x = 53,858.40

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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.