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Finding the Fourth Proportional to 96,515.55, 144,806.13 and 87,198.93

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Solution

The fourth proportional to 96,515.55, 144,806.13 and 87,198.93 is: 130,828.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,515.55 : 144,806.13 = 87,198.93 : x
  2. Step 2: Convert to fraction form
    96,515.55/144,806.13 = 87,198.93/x
  3. Step 3: Cross multiply
    96,515.55x = 144,806.13 × 87,198.93
  4. Step 4: Simplify right side
    96,515.55x = 12,626,939,593.44
  5. Step 5: Solve for x
    x = 12,626,939,593.44/96,515.55
  6. Step 6: Final answer
    x = 130,828.03

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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.