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Finding the Fourth Proportional to 252,010.99, 377,956.77 and 72,090.87

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Solution

The fourth proportional to 252,010.99, 377,956.77 and 72,090.87 is: 108,119.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,010.99 : 377,956.77 = 72,090.87 : x
  2. Step 2: Convert to fraction form
    252,010.99/377,956.77 = 72,090.87/x
  3. Step 3: Cross multiply
    252,010.99x = 377,956.77 × 72,090.87
  4. Step 4: Simplify right side
    252,010.99x = 27,247,232,371.69
  5. Step 5: Solve for x
    x = 27,247,232,371.69/252,010.99
  6. Step 6: Final answer
    x = 108,119.22

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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.