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Finding the Fourth Proportional to 117,169.09, 161,692.48 and 63,452.86

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Solution

The fourth proportional to 117,169.09, 161,692.48 and 63,452.86 is: 87,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,169.09 : 161,692.48 = 63,452.86 : x
  2. Step 2: Convert to fraction form
    117,169.09/161,692.48 = 63,452.86/x
  3. Step 3: Cross multiply
    117,169.09x = 161,692.48 × 63,452.86
  4. Step 4: Simplify right side
    117,169.09x = 10,259,849,170.77
  5. Step 5: Solve for x
    x = 10,259,849,170.77/117,169.09
  6. Step 6: Final answer
    x = 87,564.47

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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.