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Finding the Fourth Proportional to 370,906.06, 556,213.52 and 130,968.80

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Solution

The fourth proportional to 370,906.06, 556,213.52 and 130,968.80 is: 196,401.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,906.06 : 556,213.52 = 130,968.80 : x
  2. Step 2: Convert to fraction form
    370,906.06/556,213.52 = 130,968.80/x
  3. Step 3: Cross multiply
    370,906.06x = 556,213.52 × 130,968.80
  4. Step 4: Simplify right side
    370,906.06x = 72,846,617,258.18
  5. Step 5: Solve for x
    x = 72,846,617,258.18/370,906.06
  6. Step 6: Final answer
    x = 196,401.80

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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.