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Finding the Fourth Proportional to 254,212.51, 350,139.83 and 189,474.28

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Solution

The fourth proportional to 254,212.51, 350,139.83 and 189,474.28 is: 260,972.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,212.51 : 350,139.83 = 189,474.28 : x
  2. Step 2: Convert to fraction form
    254,212.51/350,139.83 = 189,474.28/x
  3. Step 3: Cross multiply
    254,212.51x = 350,139.83 × 189,474.28
  4. Step 4: Simplify right side
    254,212.51x = 66,342,491,278.16
  5. Step 5: Solve for x
    x = 66,342,491,278.16/254,212.51
  6. Step 6: Final answer
    x = 260,972.57

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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.