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Finding the Fourth Proportional to 77,896.78, 116,798.42 and 35,724.02

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Solution

The fourth proportional to 77,896.78, 116,798.42 and 35,724.02 is: 53,564.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,896.78 : 116,798.42 = 35,724.02 : x
  2. Step 2: Convert to fraction form
    77,896.78/116,798.42 = 35,724.02/x
  3. Step 3: Cross multiply
    77,896.78x = 116,798.42 × 35,724.02
  4. Step 4: Simplify right side
    77,896.78x = 4,172,509,092.05
  5. Step 5: Solve for x
    x = 4,172,509,092.05/77,896.78
  6. Step 6: Final answer
    x = 53,564.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.