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Finding the Fourth Proportional to 117,003.46, 175,440.36 and 54,639.94

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Solution

The fourth proportional to 117,003.46, 175,440.36 and 54,639.94 is: 81,929.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,003.46 : 175,440.36 = 54,639.94 : x
  2. Step 2: Convert to fraction form
    117,003.46/175,440.36 = 54,639.94/x
  3. Step 3: Cross multiply
    117,003.46x = 175,440.36 × 54,639.94
  4. Step 4: Simplify right side
    117,003.46x = 9,586,050,743.98
  5. Step 5: Solve for x
    x = 9,586,050,743.98/117,003.46
  6. Step 6: Final answer
    x = 81,929.63

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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.