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Finding the Fourth Proportional to 69,204.53, 103,806.86 and 19,284.77

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Solution

The fourth proportional to 69,204.53, 103,806.86 and 19,284.77 is: 28,927.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,204.53 : 103,806.86 = 19,284.77 : x
  2. Step 2: Convert to fraction form
    69,204.53/103,806.86 = 19,284.77/x
  3. Step 3: Cross multiply
    69,204.53x = 103,806.86 × 19,284.77
  4. Step 4: Simplify right side
    69,204.53x = 2,001,890,804.06
  5. Step 5: Solve for x
    x = 2,001,890,804.06/69,204.53
  6. Step 6: Final answer
    x = 28,927.17

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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.