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Finding the Fourth Proportional to 72,856.37, 100,551.37 and 41,031.49

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Solution

The fourth proportional to 72,856.37, 100,551.37 and 41,031.49 is: 56,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,856.37 : 100,551.37 = 41,031.49 : x
  2. Step 2: Convert to fraction form
    72,856.37/100,551.37 = 41,031.49/x
  3. Step 3: Cross multiply
    72,856.37x = 100,551.37 × 41,031.49
  4. Step 4: Simplify right side
    72,856.37x = 4,125,772,327.48
  5. Step 5: Solve for x
    x = 4,125,772,327.48/72,856.37
  6. Step 6: Final answer
    x = 56,628.85

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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.