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Finding the Fourth Proportional to 117,309.54, 161,887.32 and 63,594.54

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Solution

The fourth proportional to 117,309.54, 161,887.32 and 63,594.54 is: 87,760.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,309.54 : 161,887.32 = 63,594.54 : x
  2. Step 2: Convert to fraction form
    117,309.54/161,887.32 = 63,594.54/x
  3. Step 3: Cross multiply
    117,309.54x = 161,887.32 × 63,594.54
  4. Step 4: Simplify right side
    117,309.54x = 10,295,149,647.23
  5. Step 5: Solve for x
    x = 10,295,149,647.23/117,309.54
  6. Step 6: Final answer
    x = 87,760.55

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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.