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Finding the Fourth Proportional to 72,933.64, 100,647.03 and 41,101.90

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Solution

The fourth proportional to 72,933.64, 100,647.03 and 41,101.90 is: 56,719.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,933.64 : 100,647.03 = 41,101.90 : x
  2. Step 2: Convert to fraction form
    72,933.64/100,647.03 = 41,101.90/x
  3. Step 3: Cross multiply
    72,933.64x = 100,647.03 × 41,101.90
  4. Step 4: Simplify right side
    72,933.64x = 4,136,784,162.36
  5. Step 5: Solve for x
    x = 4,136,784,162.36/72,933.64
  6. Step 6: Final answer
    x = 56,719.84

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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.