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Finding the Fourth Proportional to 68,792.22, 103,188.33 and 55,028.70

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Solution

The fourth proportional to 68,792.22, 103,188.33 and 55,028.70 is: 82,543.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,792.22 : 103,188.33 = 55,028.70 : x
  2. Step 2: Convert to fraction form
    68,792.22/103,188.33 = 55,028.70/x
  3. Step 3: Cross multiply
    68,792.22x = 103,188.33 × 55,028.70
  4. Step 4: Simplify right side
    68,792.22x = 5,678,319,655.07
  5. Step 5: Solve for x
    x = 5,678,319,655.07/68,792.22
  6. Step 6: Final answer
    x = 82,543.05

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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.