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Finding the Fourth Proportional to 117,880.92, 176,858.27 and 75,808.51

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Solution

The fourth proportional to 117,880.92, 176,858.27 and 75,808.51 is: 113,736.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,880.92 : 176,858.27 = 75,808.51 : x
  2. Step 2: Convert to fraction form
    117,880.92/176,858.27 = 75,808.51/x
  3. Step 3: Cross multiply
    117,880.92x = 176,858.27 × 75,808.51
  4. Step 4: Simplify right side
    117,880.92x = 13,407,361,929.88
  5. Step 5: Solve for x
    x = 13,407,361,929.88/117,880.92
  6. Step 6: Final answer
    x = 113,736.49

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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.