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Finding the Fourth Proportional to 445,006.98, 667,436.63 and 160,642.98

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Solution

The fourth proportional to 445,006.98, 667,436.63 and 160,642.98 is: 240,937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,006.98 : 667,436.63 = 160,642.98 : x
  2. Step 2: Convert to fraction form
    445,006.98/667,436.63 = 160,642.98/x
  3. Step 3: Cross multiply
    445,006.98x = 667,436.63 × 160,642.98
  4. Step 4: Simplify right side
    445,006.98x = 107,219,008,401.14
  5. Step 5: Solve for x
    x = 107,219,008,401.14/445,006.98
  6. Step 6: Final answer
    x = 240,937.81

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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.