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Finding the Fourth Proportional to 117,696.76, 162,418.11 and 66,714.19

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Solution

The fourth proportional to 117,696.76, 162,418.11 and 66,714.19 is: 92,063.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,696.76 : 162,418.11 = 66,714.19 : x
  2. Step 2: Convert to fraction form
    117,696.76/162,418.11 = 66,714.19/x
  3. Step 3: Cross multiply
    117,696.76x = 162,418.11 × 66,714.19
  4. Step 4: Simplify right side
    117,696.76x = 10,835,592,649.98
  5. Step 5: Solve for x
    x = 10,835,592,649.98/117,696.76
  6. Step 6: Final answer
    x = 92,063.64

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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.