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Finding the Fourth Proportional to 117,225.41, 161,770.84 and 63,511.88

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Solution

The fourth proportional to 117,225.41, 161,770.84 and 63,511.88 is: 87,646.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,225.41 : 161,770.84 = 63,511.88 : x
  2. Step 2: Convert to fraction form
    117,225.41/161,770.84 = 63,511.88/x
  3. Step 3: Cross multiply
    117,225.41x = 161,770.84 × 63,511.88
  4. Step 4: Simplify right side
    117,225.41x = 10,274,369,209.95
  5. Step 5: Solve for x
    x = 10,274,369,209.95/117,225.41
  6. Step 6: Final answer
    x = 87,646.27

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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.