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Finding the Fourth Proportional to 123,677.97, 170,675.30 and 67,089.35

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Solution

The fourth proportional to 123,677.97, 170,675.30 and 67,089.35 is: 92,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,677.97 : 170,675.30 = 67,089.35 : x
  2. Step 2: Convert to fraction form
    123,677.97/170,675.30 = 67,089.35/x
  3. Step 3: Cross multiply
    123,677.97x = 170,675.30 × 67,089.35
  4. Step 4: Simplify right side
    123,677.97x = 11,450,493,749.23
  5. Step 5: Solve for x
    x = 11,450,493,749.23/123,677.97
  6. Step 6: Final answer
    x = 92,583.13

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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.