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Finding the Fourth Proportional to 123,054.99, 169,815.99 and 66,466.37

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Solution

The fourth proportional to 123,054.99, 169,815.99 and 66,466.37 is: 91,723.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,054.99 : 169,815.99 = 66,466.37 : x
  2. Step 2: Convert to fraction form
    123,054.99/169,815.99 = 66,466.37/x
  3. Step 3: Cross multiply
    123,054.99x = 169,815.99 × 66,466.37
  4. Step 4: Simplify right side
    123,054.99x = 11,287,051,574.18
  5. Step 5: Solve for x
    x = 11,287,051,574.18/123,054.99
  6. Step 6: Final answer
    x = 91,723.64

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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.