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Finding the Fourth Proportional to 250,236.84, 345,323.52 and 137,059.68

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Solution

The fourth proportional to 250,236.84, 345,323.52 and 137,059.68 is: 189,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,236.84 : 345,323.52 = 137,059.68 : x
  2. Step 2: Convert to fraction form
    250,236.84/345,323.52 = 137,059.68/x
  3. Step 3: Cross multiply
    250,236.84x = 345,323.52 × 137,059.68
  4. Step 4: Simplify right side
    250,236.84x = 47,329,931,147.67
  5. Step 5: Solve for x
    x = 47,329,931,147.67/250,236.84
  6. Step 6: Final answer
    x = 189,140.54

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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.