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Finding the Fourth Proportional to 114,640.64, 171,576.64 and 84,080.96

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Solution

The fourth proportional to 114,640.64, 171,576.64 and 84,080.96 is: 125,839.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,640.64 : 171,576.64 = 84,080.96 : x
  2. Step 2: Convert to fraction form
    114,640.64/171,576.64 = 84,080.96/x
  3. Step 3: Cross multiply
    114,640.64x = 171,576.64 × 84,080.96
  4. Step 4: Simplify right side
    114,640.64x = 14,426,328,604.77
  5. Step 5: Solve for x
    x = 14,426,328,604.77/114,640.64
  6. Step 6: Final answer
    x = 125,839.57

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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.