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Finding the Fourth Proportional to 72,914.86, 100,621.92 and 41,094.01

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Solution

The fourth proportional to 72,914.86, 100,621.92 and 41,094.01 is: 56,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,914.86 : 100,621.92 = 41,094.01 : x
  2. Step 2: Convert to fraction form
    72,914.86/100,621.92 = 41,094.01/x
  3. Step 3: Cross multiply
    72,914.86x = 100,621.92 × 41,094.01
  4. Step 4: Simplify right side
    72,914.86x = 4,134,958,186.70
  5. Step 5: Solve for x
    x = 4,134,958,186.70/72,914.86
  6. Step 6: Final answer
    x = 56,709.40

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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.