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Finding the Fourth Proportional to 69,573.36, 104,315.28 and 45,853.28

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Solution

The fourth proportional to 69,573.36, 104,315.28 and 45,853.28 is: 68,750.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,573.36 : 104,315.28 = 45,853.28 : x
  2. Step 2: Convert to fraction form
    69,573.36/104,315.28 = 45,853.28/x
  3. Step 3: Cross multiply
    69,573.36x = 104,315.28 × 45,853.28
  4. Step 4: Simplify right side
    69,573.36x = 4,783,197,742.12
  5. Step 5: Solve for x
    x = 4,783,197,742.12/69,573.36
  6. Step 6: Final answer
    x = 68,750.42

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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.