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Finding the Fourth Proportional to 254,405.44, 351,061.92 and 141,219.28

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Solution

The fourth proportional to 254,405.44, 351,061.92 and 141,219.28 is: 194,872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,405.44 : 351,061.92 = 141,219.28 : x
  2. Step 2: Convert to fraction form
    254,405.44/351,061.92 = 141,219.28/x
  3. Step 3: Cross multiply
    254,405.44x = 351,061.92 × 141,219.28
  4. Step 4: Simplify right side
    254,405.44x = 49,576,711,577.82
  5. Step 5: Solve for x
    x = 49,576,711,577.82/254,405.44
  6. Step 6: Final answer
    x = 194,872.84

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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.