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Finding the Fourth Proportional to 291,859.61, 437,958.23 and 123,369.03

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Solution

The fourth proportional to 291,859.61, 437,958.23 and 123,369.03 is: 185,124.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,859.61 : 437,958.23 = 123,369.03 : x
  2. Step 2: Convert to fraction form
    291,859.61/437,958.23 = 123,369.03/x
  3. Step 3: Cross multiply
    291,859.61x = 437,958.23 × 123,369.03
  4. Step 4: Simplify right side
    291,859.61x = 54,030,481,398.77
  5. Step 5: Solve for x
    x = 54,030,481,398.77/291,859.61
  6. Step 6: Final answer
    x = 185,124.90

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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.