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Finding the Fourth Proportional to 88,751.74, 132,448.34 and 79,285.46

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Solution

The fourth proportional to 88,751.74, 132,448.34 and 79,285.46 is: 118,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,751.74 : 132,448.34 = 79,285.46 : x
  2. Step 2: Convert to fraction form
    88,751.74/132,448.34 = 79,285.46/x
  3. Step 3: Cross multiply
    88,751.74x = 132,448.34 × 79,285.46
  4. Step 4: Simplify right side
    88,751.74x = 10,501,227,563.14
  5. Step 5: Solve for x
    x = 10,501,227,563.14/88,751.74
  6. Step 6: Final answer
    x = 118,321.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.