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Finding the Fourth Proportional to 328,747.96, 492,825.90 and 118,237.90

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Solution

The fourth proportional to 328,747.96, 492,825.90 and 118,237.90 is: 177,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,747.96 : 492,825.90 = 118,237.90 : x
  2. Step 2: Convert to fraction form
    328,747.96/492,825.90 = 118,237.90/x
  3. Step 3: Cross multiply
    328,747.96x = 492,825.90 × 118,237.90
  4. Step 4: Simplify right side
    328,747.96x = 58,270,699,481.61
  5. Step 5: Solve for x
    x = 58,270,699,481.61/328,747.96
  6. Step 6: Final answer
    x = 177,250.38

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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.