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Finding the Fourth Proportional to 72,876.52, 100,558.50 and 41,043.40

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Solution

The fourth proportional to 72,876.52, 100,558.50 and 41,043.40 is: 56,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,876.52 : 100,558.50 = 41,043.40 : x
  2. Step 2: Convert to fraction form
    72,876.52/100,558.50 = 41,043.40/x
  3. Step 3: Cross multiply
    72,876.52x = 100,558.50 × 41,043.40
  4. Step 4: Simplify right side
    72,876.52x = 4,127,262,738.90
  5. Step 5: Solve for x
    x = 4,127,262,738.90/72,876.52
  6. Step 6: Final answer
    x = 56,633.64

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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.