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Finding the Fourth Proportional to 119,522.75, 164,941.40 and 66,530.75

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Solution

The fourth proportional to 119,522.75, 164,941.40 and 66,530.75 is: 91,812.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,522.75 : 164,941.40 = 66,530.75 : x
  2. Step 2: Convert to fraction form
    119,522.75/164,941.40 = 66,530.75/x
  3. Step 3: Cross multiply
    119,522.75x = 164,941.40 × 66,530.75
  4. Step 4: Simplify right side
    119,522.75x = 10,973,675,048.05
  5. Step 5: Solve for x
    x = 10,973,675,048.05/119,522.75
  6. Step 6: Final answer
    x = 91,812.44

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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.