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Finding the Fourth Proportional to 355,161.78, 532,725.36 and 130,504.95

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Solution

The fourth proportional to 355,161.78, 532,725.36 and 130,504.95 is: 195,751.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,161.78 : 532,725.36 = 130,504.95 : x
  2. Step 2: Convert to fraction form
    355,161.78/532,725.36 = 130,504.95/x
  3. Step 3: Cross multiply
    355,161.78x = 532,725.36 × 130,504.95
  4. Step 4: Simplify right side
    355,161.78x = 69,523,296,470.53
  5. Step 5: Solve for x
    x = 69,523,296,470.53/355,161.78
  6. Step 6: Final answer
    x = 195,751.06

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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.