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Finding the Fourth Proportional to 254,212.89, 350,140.35 and 189,474.65

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Solution

The fourth proportional to 254,212.89, 350,140.35 and 189,474.65 is: 260,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,212.89 : 350,140.35 = 189,474.65 : x
  2. Step 2: Convert to fraction form
    254,212.89/350,140.35 = 189,474.65/x
  3. Step 3: Cross multiply
    254,212.89x = 350,140.35 × 189,474.65
  4. Step 4: Simplify right side
    254,212.89x = 66,342,720,431.95
  5. Step 5: Solve for x
    x = 66,342,720,431.95/254,212.89
  6. Step 6: Final answer
    x = 260,973.08

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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.