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Finding the Fourth Proportional to 117,495.39, 162,098.21 and 66,496.42

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Solution

The fourth proportional to 117,495.39, 162,098.21 and 66,496.42 is: 91,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,495.39 : 162,098.21 = 66,496.42 : x
  2. Step 2: Convert to fraction form
    117,495.39/162,098.21 = 66,496.42/x
  3. Step 3: Cross multiply
    117,495.39x = 162,098.21 × 66,496.42
  4. Step 4: Simplify right side
    117,495.39x = 10,778,950,566.37
  5. Step 5: Solve for x
    x = 10,778,950,566.37/117,495.39
  6. Step 6: Final answer
    x = 91,739.35

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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.