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Finding the Fourth Proportional to 71,893.39, 99,201.20 and 41,672.81

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Solution

The fourth proportional to 71,893.39, 99,201.20 and 41,672.81 is: 57,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,893.39 : 99,201.20 = 41,672.81 : x
  2. Step 2: Convert to fraction form
    71,893.39/99,201.20 = 41,672.81/x
  3. Step 3: Cross multiply
    71,893.39x = 99,201.20 × 41,672.81
  4. Step 4: Simplify right side
    71,893.39x = 4,133,992,263.37
  5. Step 5: Solve for x
    x = 4,133,992,263.37/71,893.39
  6. Step 6: Final answer
    x = 57,501.70

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1.5x scale

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.