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Finding the Fourth Proportional to 117,478.94, 175,996.46 and 91,054.31

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Solution

The fourth proportional to 117,478.94, 175,996.46 and 91,054.31 is: 136,409.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.94 : 175,996.46 = 91,054.31 : x
  2. Step 2: Convert to fraction form
    117,478.94/175,996.46 = 91,054.31/x
  3. Step 3: Cross multiply
    117,478.94x = 175,996.46 × 91,054.31
  4. Step 4: Simplify right side
    117,478.94x = 16,025,235,575.40
  5. Step 5: Solve for x
    x = 16,025,235,575.40/117,478.94
  6. Step 6: Final answer
    x = 136,409.44

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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.