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Finding the Fourth Proportional to 117,325.23, 162,042.46 and 79,533.87

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Solution

The fourth proportional to 117,325.23, 162,042.46 and 79,533.87 is: 109,847.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,325.23 : 162,042.46 = 79,533.87 : x
  2. Step 2: Convert to fraction form
    117,325.23/162,042.46 = 79,533.87/x
  3. Step 3: Cross multiply
    117,325.23x = 162,042.46 × 79,533.87
  4. Step 4: Simplify right side
    117,325.23x = 12,887,863,948.12
  5. Step 5: Solve for x
    x = 12,887,863,948.12/117,325.23
  6. Step 6: Final answer
    x = 109,847.34

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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.