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Finding the Fourth Proportional to 91,858.89, 137,789.08 and 25,302.69

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Solution

The fourth proportional to 91,858.89, 137,789.08 and 25,302.69 is: 37,954.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,858.89 : 137,789.08 = 25,302.69 : x
  2. Step 2: Convert to fraction form
    91,858.89/137,789.08 = 25,302.69/x
  3. Step 3: Cross multiply
    91,858.89x = 137,789.08 × 25,302.69
  4. Step 4: Simplify right side
    91,858.89x = 3,486,434,376.63
  5. Step 5: Solve for x
    x = 3,486,434,376.63/91,858.89
  6. Step 6: Final answer
    x = 37,954.24

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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.