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Finding the Fourth Proportional to 189,880.01, 262,023.60 and 103,822.94

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Solution

The fourth proportional to 189,880.01, 262,023.60 and 103,822.94 is: 143,269.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,880.01 : 262,023.60 = 103,822.94 : x
  2. Step 2: Convert to fraction form
    189,880.01/262,023.60 = 103,822.94/x
  3. Step 3: Cross multiply
    189,880.01x = 262,023.60 × 103,822.94
  4. Step 4: Simplify right side
    189,880.01x = 27,204,059,191.27
  5. Step 5: Solve for x
    x = 27,204,059,191.27/189,880.01
  6. Step 6: Final answer
    x = 143,269.74

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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.