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Finding the Fourth Proportional to 89,661.92, 123,733.80 and 53,852.54

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Solution

The fourth proportional to 89,661.92, 123,733.80 and 53,852.54 is: 74,316.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,661.92 : 123,733.80 = 53,852.54 : x
  2. Step 2: Convert to fraction form
    89,661.92/123,733.80 = 53,852.54/x
  3. Step 3: Cross multiply
    89,661.92x = 123,733.80 × 53,852.54
  4. Step 4: Simplify right side
    89,661.92x = 6,663,378,795.18
  5. Step 5: Solve for x
    x = 6,663,378,795.18/89,661.92
  6. Step 6: Final answer
    x = 74,316.71

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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.