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Finding the Fourth Proportional to 500,817.12, 751,227 and 145,839.84

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Solution

The fourth proportional to 500,817.12, 751,227 and 145,839.84 is: 218,760.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,817.12 : 751,227 = 145,839.84 : x
  2. Step 2: Convert to fraction form
    500,817.12/751,227 = 145,839.84/x
  3. Step 3: Cross multiply
    500,817.12x = 751,227 × 145,839.84
  4. Step 4: Simplify right side
    500,817.12x = 109,558,825,483.68
  5. Step 5: Solve for x
    x = 109,558,825,483.68/500,817.12
  6. Step 6: Final answer
    x = 218,760.14

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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.