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Finding the Fourth Proportional to 133,941.68, 200,912.51 and 104,381.63

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Solution

The fourth proportional to 133,941.68, 200,912.51 and 104,381.63 is: 156,572.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,941.68 : 200,912.51 = 104,381.63 : x
  2. Step 2: Convert to fraction form
    133,941.68/200,912.51 = 104,381.63/x
  3. Step 3: Cross multiply
    133,941.68x = 200,912.51 × 104,381.63
  4. Step 4: Simplify right side
    133,941.68x = 20,971,574,537.58
  5. Step 5: Solve for x
    x = 20,971,574,537.58/133,941.68
  6. Step 6: Final answer
    x = 156,572.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.