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Finding the Fourth Proportional to 77,858.70, 116,796.24 and 35,731.60

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Solution

The fourth proportional to 77,858.70, 116,796.24 and 35,731.60 is: 53,601.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,858.70 : 116,796.24 = 35,731.60 : x
  2. Step 2: Convert to fraction form
    77,858.70/116,796.24 = 35,731.60/x
  3. Step 3: Cross multiply
    77,858.70x = 116,796.24 × 35,731.60
  4. Step 4: Simplify right side
    77,858.70x = 4,173,316,529.18
  5. Step 5: Solve for x
    x = 4,173,316,529.18/77,858.70
  6. Step 6: Final answer
    x = 53,601.16

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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.