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Finding the Fourth Proportional to 123,063.63, 169,827.90 and 66,475.02

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Solution

The fourth proportional to 123,063.63, 169,827.90 and 66,475.02 is: 91,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,063.63 : 169,827.90 = 66,475.02 : x
  2. Step 2: Convert to fraction form
    123,063.63/169,827.90 = 66,475.02/x
  3. Step 3: Cross multiply
    123,063.63x = 169,827.90 × 66,475.02
  4. Step 4: Simplify right side
    123,063.63x = 11,289,313,049.06
  5. Step 5: Solve for x
    x = 11,289,313,049.06/123,063.63
  6. Step 6: Final answer
    x = 91,735.58

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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.