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Finding the Fourth Proportional to 121,041, 167,036.58 and 68,049

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Solution

The fourth proportional to 121,041, 167,036.58 and 68,049 is: 93,907.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,041 : 167,036.58 = 68,049 : x
  2. Step 2: Convert to fraction form
    121,041/167,036.58 = 68,049/x
  3. Step 3: Cross multiply
    121,041x = 167,036.58 × 68,049
  4. Step 4: Simplify right side
    121,041x = 11,366,672,232.42
  5. Step 5: Solve for x
    x = 11,366,672,232.42/121,041
  6. Step 6: Final answer
    x = 93,907.62

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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.