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Finding the Fourth Proportional to 98,362.41, 135,736.14 and 55,342.77

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Solution

The fourth proportional to 98,362.41, 135,736.14 and 55,342.77 is: 76,370.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,362.41 : 135,736.14 = 55,342.77 : x
  2. Step 2: Convert to fraction form
    98,362.41/135,736.14 = 55,342.77/x
  3. Step 3: Cross multiply
    98,362.41x = 135,736.14 × 55,342.77
  4. Step 4: Simplify right side
    98,362.41x = 7,512,013,976.71
  5. Step 5: Solve for x
    x = 7,512,013,976.71/98,362.41
  6. Step 6: Final answer
    x = 76,370.78

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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.