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Finding the Fourth Proportional to 124,609.68, 171,958.68 and 68,022

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Solution

The fourth proportional to 124,609.68, 171,958.68 and 68,022 is: 93,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,609.68 : 171,958.68 = 68,022 : x
  2. Step 2: Convert to fraction form
    124,609.68/171,958.68 = 68,022/x
  3. Step 3: Cross multiply
    124,609.68x = 171,958.68 × 68,022
  4. Step 4: Simplify right side
    124,609.68x = 11,696,973,330.96
  5. Step 5: Solve for x
    x = 11,696,973,330.96/124,609.68
  6. Step 6: Final answer
    x = 93,868.90

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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.