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Finding the Fourth Proportional to 298,627.64, 448,004.46 and 98,936.60

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Solution

The fourth proportional to 298,627.64, 448,004.46 and 98,936.60 is: 148,425.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,627.64 : 448,004.46 = 98,936.60 : x
  2. Step 2: Convert to fraction form
    298,627.64/448,004.46 = 98,936.60/x
  3. Step 3: Cross multiply
    298,627.64x = 448,004.46 × 98,936.60
  4. Step 4: Simplify right side
    298,627.64x = 44,324,038,057.24
  5. Step 5: Solve for x
    x = 44,324,038,057.24/298,627.64
  6. Step 6: Final answer
    x = 148,425.77

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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.