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Finding the Fourth Proportional to 355,168.56, 532,735.50 and 130,511.70

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Solution

The fourth proportional to 355,168.56, 532,735.50 and 130,511.70 is: 195,761.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,168.56 : 532,735.50 = 130,511.70 : x
  2. Step 2: Convert to fraction form
    355,168.56/532,735.50 = 130,511.70/x
  3. Step 3: Cross multiply
    355,168.56x = 532,735.50 × 130,511.70
  4. Step 4: Simplify right side
    355,168.56x = 69,528,215,755.35
  5. Step 5: Solve for x
    x = 69,528,215,755.35/355,168.56
  6. Step 6: Final answer
    x = 195,761.18

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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.