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Finding the Fourth Proportional to 117,478.87, 176,216.79 and 28,733.11

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Solution

The fourth proportional to 117,478.87, 176,216.79 and 28,733.11 is: 43,099.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,478.87 : 176,216.79 = 28,733.11 : x
  2. Step 2: Convert to fraction form
    117,478.87/176,216.79 = 28,733.11/x
  3. Step 3: Cross multiply
    117,478.87x = 176,216.79 × 28,733.11
  4. Step 4: Simplify right side
    117,478.87x = 5,063,256,267.25
  5. Step 5: Solve for x
    x = 5,063,256,267.25/117,478.87
  6. Step 6: Final answer
    x = 43,099.29

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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.