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Finding the Fourth Proportional to 69,900.94, 104,747.70 and 51,342.22

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Solution

The fourth proportional to 69,900.94, 104,747.70 and 51,342.22 is: 76,937.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,900.94 : 104,747.70 = 51,342.22 : x
  2. Step 2: Convert to fraction form
    69,900.94/104,747.70 = 51,342.22/x
  3. Step 3: Cross multiply
    69,900.94x = 104,747.70 × 51,342.22
  4. Step 4: Simplify right side
    69,900.94x = 5,377,979,457.89
  5. Step 5: Solve for x
    x = 5,377,979,457.89/69,900.94
  6. Step 6: Final answer
    x = 76,937.16

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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.