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Finding the Fourth Proportional to 122,362.92, 168,828.30 and 73,953

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Solution

The fourth proportional to 122,362.92, 168,828.30 and 73,953 is: 102,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,362.92 : 168,828.30 = 73,953 : x
  2. Step 2: Convert to fraction form
    122,362.92/168,828.30 = 73,953/x
  3. Step 3: Cross multiply
    122,362.92x = 168,828.30 × 73,953
  4. Step 4: Simplify right side
    122,362.92x = 12,485,359,269.90
  5. Step 5: Solve for x
    x = 12,485,359,269.90/122,362.92
  6. Step 6: Final answer
    x = 102,035.48

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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.