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Finding the Fourth Proportional to 355,520.44, 533,228.22 and 130,828.68

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Solution

The fourth proportional to 355,520.44, 533,228.22 and 130,828.68 is: 196,223.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,520.44 : 533,228.22 = 130,828.68 : x
  2. Step 2: Convert to fraction form
    355,520.44/533,228.22 = 130,828.68/x
  3. Step 3: Cross multiply
    355,520.44x = 533,228.22 × 130,828.68
  4. Step 4: Simplify right side
    355,520.44x = 69,761,544,161.35
  5. Step 5: Solve for x
    x = 69,761,544,161.35/355,520.44
  6. Step 6: Final answer
    x = 196,223.72

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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.