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Finding the Fourth Proportional to 84,751, 116,541.66 and 73,553.56

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Solution

The fourth proportional to 84,751, 116,541.66 and 73,553.56 is: 101,143.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,751 : 116,541.66 = 73,553.56 : x
  2. Step 2: Convert to fraction form
    84,751/116,541.66 = 73,553.56/x
  3. Step 3: Cross multiply
    84,751x = 116,541.66 × 73,553.56
  4. Step 4: Simplify right side
    84,751x = 8,572,053,981.31
  5. Step 5: Solve for x
    x = 8,572,053,981.31/84,751
  6. Step 6: Final answer
    x = 101,143.99

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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.