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Finding the Fourth Proportional to 161,745.36, 242,693.19 and 61,872.54

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Solution

The fourth proportional to 161,745.36, 242,693.19 and 61,872.54 is: 92,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,745.36 : 242,693.19 = 61,872.54 : x
  2. Step 2: Convert to fraction form
    161,745.36/242,693.19 = 61,872.54/x
  3. Step 3: Cross multiply
    161,745.36x = 242,693.19 × 61,872.54
  4. Step 4: Simplify right side
    161,745.36x = 15,016,044,106.00
  5. Step 5: Solve for x
    x = 15,016,044,106.00/161,745.36
  6. Step 6: Final answer
    x = 92,837.56

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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.