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Finding the Fourth Proportional to 167,338.50, 230,928.75 and 91,888.62

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Solution

The fourth proportional to 167,338.50, 230,928.75 and 91,888.62 is: 126,807.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,338.50 : 230,928.75 = 91,888.62 : x
  2. Step 2: Convert to fraction form
    167,338.50/230,928.75 = 91,888.62/x
  3. Step 3: Cross multiply
    167,338.50x = 230,928.75 × 91,888.62
  4. Step 4: Simplify right side
    167,338.50x = 21,219,724,155.83
  5. Step 5: Solve for x
    x = 21,219,724,155.83/167,338.50
  6. Step 6: Final answer
    x = 126,807.19

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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.