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Finding the Fourth Proportional to 123,192.61, 170,006.19 and 66,604.39

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Solution

The fourth proportional to 123,192.61, 170,006.19 and 66,604.39 is: 91,914.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,192.61 : 170,006.19 = 66,604.39 : x
  2. Step 2: Convert to fraction form
    123,192.61/170,006.19 = 66,604.39/x
  3. Step 3: Cross multiply
    123,192.61x = 170,006.19 × 66,604.39
  4. Step 4: Simplify right side
    123,192.61x = 11,323,158,581.17
  5. Step 5: Solve for x
    x = 11,323,158,581.17/123,192.61
  6. Step 6: Final answer
    x = 91,914.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.