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Finding the Fourth Proportional to 483,381.21, 725,108.73 and 146,449.77

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Solution

The fourth proportional to 483,381.21, 725,108.73 and 146,449.77 is: 219,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,381.21 : 725,108.73 = 146,449.77 : x
  2. Step 2: Convert to fraction form
    483,381.21/725,108.73 = 146,449.77/x
  3. Step 3: Cross multiply
    483,381.21x = 725,108.73 × 146,449.77
  4. Step 4: Simplify right side
    483,381.21x = 106,192,007,543.88
  5. Step 5: Solve for x
    x = 106,192,007,543.88/483,381.21
  6. Step 6: Final answer
    x = 219,685.84

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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.