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Finding the Fourth Proportional to 69,201.96, 103,802.95 and 16,611.45

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Solution

The fourth proportional to 69,201.96, 103,802.95 and 16,611.45 is: 24,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,201.96 : 103,802.95 = 16,611.45 : x
  2. Step 2: Convert to fraction form
    69,201.96/103,802.95 = 16,611.45/x
  3. Step 3: Cross multiply
    69,201.96x = 103,802.95 × 16,611.45
  4. Step 4: Simplify right side
    69,201.96x = 1,724,317,329.20
  5. Step 5: Solve for x
    x = 1,724,317,329.20/69,201.96
  6. Step 6: Final answer
    x = 24,917.17

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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.