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Finding the Fourth Proportional to 98,263.66, 135,608.66 and 55,256.69

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Solution

The fourth proportional to 98,263.66, 135,608.66 and 55,256.69 is: 76,256.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,263.66 : 135,608.66 = 55,256.69 : x
  2. Step 2: Convert to fraction form
    98,263.66/135,608.66 = 55,256.69/x
  3. Step 3: Cross multiply
    98,263.66x = 135,608.66 × 55,256.69
  4. Step 4: Simplify right side
    98,263.66x = 7,493,285,890.92
  5. Step 5: Solve for x
    x = 7,493,285,890.92/98,263.66
  6. Step 6: Final answer
    x = 76,256.94

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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.