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Finding the Fourth Proportional to 482,406.98, 723,645.29 and 127,416.38

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Solution

The fourth proportional to 482,406.98, 723,645.29 and 127,416.38 is: 191,133.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,406.98 : 723,645.29 = 127,416.38 : x
  2. Step 2: Convert to fraction form
    482,406.98/723,645.29 = 127,416.38/x
  3. Step 3: Cross multiply
    482,406.98x = 723,645.29 × 127,416.38
  4. Step 4: Simplify right side
    482,406.98x = 92,204,259,956.16
  5. Step 5: Solve for x
    x = 92,204,259,956.16/482,406.98
  6. Step 6: Final answer
    x = 191,133.76

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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.