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Finding the Fourth Proportional to 107,858.74, 148,845.56 and 62,563.54

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Solution

The fourth proportional to 107,858.74, 148,845.56 and 62,563.54 is: 86,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,858.74 : 148,845.56 = 62,563.54 : x
  2. Step 2: Convert to fraction form
    107,858.74/148,845.56 = 62,563.54/x
  3. Step 3: Cross multiply
    107,858.74x = 148,845.56 × 62,563.54
  4. Step 4: Simplify right side
    107,858.74x = 9,312,305,146.88
  5. Step 5: Solve for x
    x = 9,312,305,146.88/107,858.74
  6. Step 6: Final answer
    x = 86,337.97

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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.