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Finding the Fourth Proportional to 169,960.31, 234,550.94 and 93,485.31

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Solution

The fourth proportional to 169,960.31, 234,550.94 and 93,485.31 is: 129,012.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,960.31 : 234,550.94 = 93,485.31 : x
  2. Step 2: Convert to fraction form
    169,960.31/234,550.94 = 93,485.31/x
  3. Step 3: Cross multiply
    169,960.31x = 234,550.94 × 93,485.31
  4. Step 4: Simplify right side
    169,960.31x = 21,927,066,869.26
  5. Step 5: Solve for x
    x = 21,927,066,869.26/169,960.31
  6. Step 6: Final answer
    x = 129,012.87

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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.