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Finding the Fourth Proportional to 97,371.97, 134,379.53 and 54,915.01

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Solution

The fourth proportional to 97,371.97, 134,379.53 and 54,915.01 is: 75,786.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,371.97 : 134,379.53 = 54,915.01 : x
  2. Step 2: Convert to fraction form
    97,371.97/134,379.53 = 54,915.01/x
  3. Step 3: Cross multiply
    97,371.97x = 134,379.53 × 54,915.01
  4. Step 4: Simplify right side
    97,371.97x = 7,379,453,233.75
  5. Step 5: Solve for x
    x = 7,379,453,233.75/97,371.97
  6. Step 6: Final answer
    x = 75,786.22

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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.