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Finding the Fourth Proportional to 117,696.66, 162,424.56 and 63,985.32

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Solution

The fourth proportional to 117,696.66, 162,424.56 and 63,985.32 is: 88,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,696.66 : 162,424.56 = 63,985.32 : x
  2. Step 2: Convert to fraction form
    117,696.66/162,424.56 = 63,985.32/x
  3. Step 3: Cross multiply
    117,696.66x = 162,424.56 × 63,985.32
  4. Step 4: Simplify right side
    117,696.66x = 10,392,787,447.46
  5. Step 5: Solve for x
    x = 10,392,787,447.46/117,696.66
  6. Step 6: Final answer
    x = 88,301.46

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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.