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Finding the Fourth Proportional to 91,436.91, 137,164.60 and 34,496.54

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Solution

The fourth proportional to 91,436.91, 137,164.60 and 34,496.54 is: 51,748.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,436.91 : 137,164.60 = 34,496.54 : x
  2. Step 2: Convert to fraction form
    91,436.91/137,164.60 = 34,496.54/x
  3. Step 3: Cross multiply
    91,436.91x = 137,164.60 × 34,496.54
  4. Step 4: Simplify right side
    91,436.91x = 4,731,703,424.66
  5. Step 5: Solve for x
    x = 4,731,703,424.66/91,436.91
  6. Step 6: Final answer
    x = 51,748.29

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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.