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Finding the Fourth Proportional to 254,560.50, 351,300.78 and 141,390.54

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Solution

The fourth proportional to 254,560.50, 351,300.78 and 141,390.54 is: 195,122.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,560.50 : 351,300.78 = 141,390.54 : x
  2. Step 2: Convert to fraction form
    254,560.50/351,300.78 = 141,390.54/x
  3. Step 3: Cross multiply
    254,560.50x = 351,300.78 × 141,390.54
  4. Step 4: Simplify right side
    254,560.50x = 49,670,606,986.62
  5. Step 5: Solve for x
    x = 49,670,606,986.62/254,560.50
  6. Step 6: Final answer
    x = 195,122.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.