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Finding the Fourth Proportional to 117,179.39, 161,707.50 and 63,464.40

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Solution

The fourth proportional to 117,179.39, 161,707.50 and 63,464.40 is: 87,580.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,179.39 : 161,707.50 = 63,464.40 : x
  2. Step 2: Convert to fraction form
    117,179.39/161,707.50 = 63,464.40/x
  3. Step 3: Cross multiply
    117,179.39x = 161,707.50 × 63,464.40
  4. Step 4: Simplify right side
    117,179.39x = 10,262,669,463
  5. Step 5: Solve for x
    x = 10,262,669,463/117,179.39
  6. Step 6: Final answer
    x = 87,580.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.