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Finding the Fourth Proportional to 115,866.63, 173,791.32 and 35,905.23

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Solution

The fourth proportional to 115,866.63, 173,791.32 and 35,905.23 is: 53,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,866.63 : 173,791.32 = 35,905.23 : x
  2. Step 2: Convert to fraction form
    115,866.63/173,791.32 = 35,905.23/x
  3. Step 3: Cross multiply
    115,866.63x = 173,791.32 × 35,905.23
  4. Step 4: Simplify right side
    115,866.63x = 6,240,017,316.60
  5. Step 5: Solve for x
    x = 6,240,017,316.60/115,866.63
  6. Step 6: Final answer
    x = 53,855.17

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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.