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Finding the Fourth Proportional to 79,199.93, 118,516.91 and 68,792.55

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Solution

The fourth proportional to 79,199.93, 118,516.91 and 68,792.55 is: 102,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,199.93 : 118,516.91 = 68,792.55 : x
  2. Step 2: Convert to fraction form
    79,199.93/118,516.91 = 68,792.55/x
  3. Step 3: Cross multiply
    79,199.93x = 118,516.91 × 68,792.55
  4. Step 4: Simplify right side
    79,199.93x = 8,153,080,113.06
  5. Step 5: Solve for x
    x = 8,153,080,113.06/79,199.93
  6. Step 6: Final answer
    x = 102,943.03

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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.