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Finding the Fourth Proportional to 72,001.64, 107,846.47 and 52,236.56

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Solution

The fourth proportional to 72,001.64, 107,846.47 and 52,236.56 is: 78,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,001.64 : 107,846.47 = 52,236.56 : x
  2. Step 2: Convert to fraction form
    72,001.64/107,846.47 = 52,236.56/x
  3. Step 3: Cross multiply
    72,001.64x = 107,846.47 × 52,236.56
  4. Step 4: Simplify right side
    72,001.64x = 5,633,528,935.86
  5. Step 5: Solve for x
    x = 5,633,528,935.86/72,001.64
  6. Step 6: Final answer
    x = 78,241.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.