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Finding the Fourth Proportional to 256,551.39, 354,153.33 and 196,124.58

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Solution

The fourth proportional to 256,551.39, 354,153.33 and 196,124.58 is: 270,737.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,551.39 : 354,153.33 = 196,124.58 : x
  2. Step 2: Convert to fraction form
    256,551.39/354,153.33 = 196,124.58/x
  3. Step 3: Cross multiply
    256,551.39x = 354,153.33 × 196,124.58
  4. Step 4: Simplify right side
    256,551.39x = 69,458,173,101.85
  5. Step 5: Solve for x
    x = 69,458,173,101.85/256,551.39
  6. Step 6: Final answer
    x = 270,737.86

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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.