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Finding the Fourth Proportional to 118,546.60, 163,653.79 and 91,628.27

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Solution

The fourth proportional to 118,546.60, 163,653.79 and 91,628.27 is: 126,492.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,546.60 : 163,653.79 = 91,628.27 : x
  2. Step 2: Convert to fraction form
    118,546.60/163,653.79 = 91,628.27/x
  3. Step 3: Cross multiply
    118,546.60x = 163,653.79 × 91,628.27
  4. Step 4: Simplify right side
    118,546.60x = 14,995,313,656.64
  5. Step 5: Solve for x
    x = 14,995,313,656.64/118,546.60
  6. Step 6: Final answer
    x = 126,492.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.