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Finding the Fourth Proportional to 256,771.12, 354,280.48 and 166,017.88

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Solution

The fourth proportional to 256,771.12, 354,280.48 and 166,017.88 is: 229,063.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,771.12 : 354,280.48 = 166,017.88 : x
  2. Step 2: Convert to fraction form
    256,771.12/354,280.48 = 166,017.88/x
  3. Step 3: Cross multiply
    256,771.12x = 354,280.48 × 166,017.88
  4. Step 4: Simplify right side
    256,771.12x = 58,816,895,508.78
  5. Step 5: Solve for x
    x = 58,816,895,508.78/256,771.12
  6. Step 6: Final answer
    x = 229,063.52

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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.