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Finding the Fourth Proportional to 156,507.44, 215,974.44 and 92,807.12

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Solution

The fourth proportional to 156,507.44, 215,974.44 and 92,807.12 is: 128,070.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,507.44 : 215,974.44 = 92,807.12 : x
  2. Step 2: Convert to fraction form
    156,507.44/215,974.44 = 92,807.12/x
  3. Step 3: Cross multiply
    156,507.44x = 215,974.44 × 92,807.12
  4. Step 4: Simplify right side
    156,507.44x = 20,043,965,770.01
  5. Step 5: Solve for x
    x = 20,043,965,770.01/156,507.44
  6. Step 6: Final answer
    x = 128,070.37

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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.