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Finding the Fourth Proportional to 123,838.33, 170,895.39 and 67,250.11

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Solution

The fourth proportional to 123,838.33, 170,895.39 and 67,250.11 is: 92,804.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,838.33 : 170,895.39 = 67,250.11 : x
  2. Step 2: Convert to fraction form
    123,838.33/170,895.39 = 67,250.11/x
  3. Step 3: Cross multiply
    123,838.33x = 170,895.39 × 67,250.11
  4. Step 4: Simplify right side
    123,838.33x = 11,492,733,775.99
  5. Step 5: Solve for x
    x = 11,492,733,775.99/123,838.33
  6. Step 6: Final answer
    x = 92,804.33

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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.