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Finding the Fourth Proportional to 254,891.90, 351,741.62 and 140,169.58

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Solution

The fourth proportional to 254,891.90, 351,741.62 and 140,169.58 is: 193,428.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,891.90 : 351,741.62 = 140,169.58 : x
  2. Step 2: Convert to fraction form
    254,891.90/351,741.62 = 140,169.58/x
  3. Step 3: Cross multiply
    254,891.90x = 351,741.62 × 140,169.58
  4. Step 4: Simplify right side
    254,891.90x = 49,303,474,614.99
  5. Step 5: Solve for x
    x = 49,303,474,614.99/254,891.90
  6. Step 6: Final answer
    x = 193,428.96

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1.5x scale

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.