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Finding the Fourth Proportional to 220,876.40, 331,055.40 and 94,516.40

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Solution

The fourth proportional to 220,876.40, 331,055.40 and 94,516.40 is: 141,663.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,876.40 : 331,055.40 = 94,516.40 : x
  2. Step 2: Convert to fraction form
    220,876.40/331,055.40 = 94,516.40/x
  3. Step 3: Cross multiply
    220,876.40x = 331,055.40 × 94,516.40
  4. Step 4: Simplify right side
    220,876.40x = 31,290,164,608.56
  5. Step 5: Solve for x
    x = 31,290,164,608.56/220,876.40
  6. Step 6: Final answer
    x = 141,663.68

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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.