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Finding the Fourth Proportional to 117,703.17, 176,318.37 and 54,434.61

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Solution

The fourth proportional to 117,703.17, 176,318.37 and 54,434.61 is: 81,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,703.17 : 176,318.37 = 54,434.61 : x
  2. Step 2: Convert to fraction form
    117,703.17/176,318.37 = 54,434.61/x
  3. Step 3: Cross multiply
    117,703.17x = 176,318.37 × 54,434.61
  4. Step 4: Simplify right side
    117,703.17x = 9,597,821,706.79
  5. Step 5: Solve for x
    x = 9,597,821,706.79/117,703.17
  6. Step 6: Final answer
    x = 81,542.59

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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.