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Finding the Fourth Proportional to 75,703.56, 104,558.46 and 51,788.28

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Solution

The fourth proportional to 75,703.56, 104,558.46 and 51,788.28 is: 71,527.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,703.56 : 104,558.46 = 51,788.28 : x
  2. Step 2: Convert to fraction form
    75,703.56/104,558.46 = 51,788.28/x
  3. Step 3: Cross multiply
    75,703.56x = 104,558.46 × 51,788.28
  4. Step 4: Simplify right side
    75,703.56x = 5,414,902,802.85
  5. Step 5: Solve for x
    x = 5,414,902,802.85/75,703.56
  6. Step 6: Final answer
    x = 71,527.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.