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Finding the Fourth Proportional to 117,163.20, 175,820.40 and 64,610.40

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Solution

The fourth proportional to 117,163.20, 175,820.40 and 64,610.40 is: 96,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,163.20 : 175,820.40 = 64,610.40 : x
  2. Step 2: Convert to fraction form
    117,163.20/175,820.40 = 64,610.40/x
  3. Step 3: Cross multiply
    117,163.20x = 175,820.40 × 64,610.40
  4. Step 4: Simplify right side
    117,163.20x = 11,359,826,372.16
  5. Step 5: Solve for x
    x = 11,359,826,372.16/117,163.20
  6. Step 6: Final answer
    x = 96,957.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.