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Finding the Fourth Proportional to 103,800.98, 155,677.56 and 40,622.60

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Solution

The fourth proportional to 103,800.98, 155,677.56 and 40,622.60 is: 60,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,800.98 : 155,677.56 = 40,622.60 : x
  2. Step 2: Convert to fraction form
    103,800.98/155,677.56 = 40,622.60/x
  3. Step 3: Cross multiply
    103,800.98x = 155,677.56 × 40,622.60
  4. Step 4: Simplify right side
    103,800.98x = 6,324,026,470.47
  5. Step 5: Solve for x
    x = 6,324,026,470.47/103,800.98
  6. Step 6: Final answer
    x = 60,924.54

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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.