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Finding the Fourth Proportional to 69,968.44, 104,900.82 and 42,259.96

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Solution

The fourth proportional to 69,968.44, 104,900.82 and 42,259.96 is: 63,358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,968.44 : 104,900.82 = 42,259.96 : x
  2. Step 2: Convert to fraction form
    69,968.44/104,900.82 = 42,259.96/x
  3. Step 3: Cross multiply
    69,968.44x = 104,900.82 × 42,259.96
  4. Step 4: Simplify right side
    69,968.44x = 4,433,104,457.17
  5. Step 5: Solve for x
    x = 4,433,104,457.17/69,968.44
  6. Step 6: Final answer
    x = 63,358.63

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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.