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Finding the Fourth Proportional to 117,191.21, 161,723.79 and 63,477.27

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Solution

The fourth proportional to 117,191.21, 161,723.79 and 63,477.27 is: 87,598.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,191.21 : 161,723.79 = 63,477.27 : x
  2. Step 2: Convert to fraction form
    117,191.21/161,723.79 = 63,477.27/x
  3. Step 3: Cross multiply
    117,191.21x = 161,723.79 × 63,477.27
  4. Step 4: Simplify right side
    117,191.21x = 10,265,784,683.25
  5. Step 5: Solve for x
    x = 10,265,784,683.25/117,191.21
  6. Step 6: Final answer
    x = 87,598.59

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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.