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Finding the Fourth Proportional to 480,663.11, 721,035.83 and 125,676.56

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Solution

The fourth proportional to 480,663.11, 721,035.83 and 125,676.56 is: 188,525.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,663.11 : 721,035.83 = 125,676.56 : x
  2. Step 2: Convert to fraction form
    480,663.11/721,035.83 = 125,676.56/x
  3. Step 3: Cross multiply
    480,663.11x = 721,035.83 × 125,676.56
  4. Step 4: Simplify right side
    480,663.11x = 90,617,304,161.00
  5. Step 5: Solve for x
    x = 90,617,304,161.00/480,663.11
  6. Step 6: Final answer
    x = 188,525.61

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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.