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Finding the Fourth Proportional to 123,065.62, 169,830.63 and 66,477.02

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Solution

The fourth proportional to 123,065.62, 169,830.63 and 66,477.02 is: 91,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,065.62 : 169,830.63 = 66,477.02 : x
  2. Step 2: Convert to fraction form
    123,065.62/169,830.63 = 66,477.02/x
  3. Step 3: Cross multiply
    123,065.62x = 169,830.63 × 66,477.02
  4. Step 4: Simplify right side
    123,065.62x = 11,289,834,187.12
  5. Step 5: Solve for x
    x = 11,289,834,187.12/123,065.62
  6. Step 6: Final answer
    x = 91,738.33

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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.