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Finding the Fourth Proportional to 161,318.70, 241,862.79 and 75,881.73

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Solution

The fourth proportional to 161,318.70, 241,862.79 and 75,881.73 is: 113,768.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,318.70 : 241,862.79 = 75,881.73 : x
  2. Step 2: Convert to fraction form
    161,318.70/241,862.79 = 75,881.73/x
  3. Step 3: Cross multiply
    161,318.70x = 241,862.79 × 75,881.73
  4. Step 4: Simplify right side
    161,318.70x = 18,352,966,927.83
  5. Step 5: Solve for x
    x = 18,352,966,927.83/161,318.70
  6. Step 6: Final answer
    x = 113,768.38

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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.