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Finding the Fourth Proportional to 104,186.34, 155,938.68 and 56,682.90

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Solution

The fourth proportional to 104,186.34, 155,938.68 and 56,682.90 is: 84,838.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,186.34 : 155,938.68 = 56,682.90 : x
  2. Step 2: Convert to fraction form
    104,186.34/155,938.68 = 56,682.90/x
  3. Step 3: Cross multiply
    104,186.34x = 155,938.68 × 56,682.90
  4. Step 4: Simplify right side
    104,186.34x = 8,839,056,604.57
  5. Step 5: Solve for x
    x = 8,839,056,604.57/104,186.34
  6. Step 6: Final answer
    x = 84,838.92

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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.