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Finding the Fourth Proportional to 468,909.12, 703,361.34 and 169,389.48

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Solution

The fourth proportional to 468,909.12, 703,361.34 and 169,389.48 is: 254,083.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,909.12 : 703,361.34 = 169,389.48 : x
  2. Step 2: Convert to fraction form
    468,909.12/703,361.34 = 169,389.48/x
  3. Step 3: Cross multiply
    468,909.12x = 703,361.34 × 169,389.48
  4. Step 4: Simplify right side
    468,909.12x = 119,142,011,634.70
  5. Step 5: Solve for x
    x = 119,142,011,634.70/468,909.12
  6. Step 6: Final answer
    x = 254,083.37

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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.