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Finding the Fourth Proportional to 347,645.26, 521,701.62 and 123,004.80

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Solution

The fourth proportional to 347,645.26, 521,701.62 and 123,004.80 is: 184,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,645.26 : 521,701.62 = 123,004.80 : x
  2. Step 2: Convert to fraction form
    347,645.26/521,701.62 = 123,004.80/x
  3. Step 3: Cross multiply
    347,645.26x = 521,701.62 × 123,004.80
  4. Step 4: Simplify right side
    347,645.26x = 64,171,803,427.78
  5. Step 5: Solve for x
    x = 64,171,803,427.78/347,645.26
  6. Step 6: Final answer
    x = 184,589.90

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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.