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Finding the Fourth Proportional to 117,770.90, 162,519.17 and 64,055.84

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Solution

The fourth proportional to 117,770.90, 162,519.17 and 64,055.84 is: 88,394.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,770.90 : 162,519.17 = 64,055.84 : x
  2. Step 2: Convert to fraction form
    117,770.90/162,519.17 = 64,055.84/x
  3. Step 3: Cross multiply
    117,770.90x = 162,519.17 × 64,055.84
  4. Step 4: Simplify right side
    117,770.90x = 10,410,300,817.58
  5. Step 5: Solve for x
    x = 10,410,300,817.58/117,770.90
  6. Step 6: Final answer
    x = 88,394.51

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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.