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Finding the Fourth Proportional to 325,211.88, 487,185.96 and 239,667.36

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Solution

The fourth proportional to 325,211.88, 487,185.96 and 239,667.36 is: 359,035.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,211.88 : 487,185.96 = 239,667.36 : x
  2. Step 2: Convert to fraction form
    325,211.88/487,185.96 = 239,667.36/x
  3. Step 3: Cross multiply
    325,211.88x = 487,185.96 × 239,667.36
  4. Step 4: Simplify right side
    325,211.88x = 116,762,572,862.27
  5. Step 5: Solve for x
    x = 116,762,572,862.27/325,211.88
  6. Step 6: Final answer
    x = 359,035.39

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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.