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Finding the Fourth Proportional to 117,894.68, 162,694.20 and 64,179.50

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Solution

The fourth proportional to 117,894.68, 162,694.20 and 64,179.50 is: 88,567.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,894.68 : 162,694.20 = 64,179.50 : x
  2. Step 2: Convert to fraction form
    117,894.68/162,694.20 = 64,179.50/x
  3. Step 3: Cross multiply
    117,894.68x = 162,694.20 × 64,179.50
  4. Step 4: Simplify right side
    117,894.68x = 10,441,632,408.90
  5. Step 5: Solve for x
    x = 10,441,632,408.90/117,894.68
  6. Step 6: Final answer
    x = 88,567.46

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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.