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Finding the Fourth Proportional to 256,281.09, 384,202.80 and 181,164.93

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Solution

The fourth proportional to 256,281.09, 384,202.80 and 181,164.93 is: 271,592.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,281.09 : 384,202.80 = 181,164.93 : x
  2. Step 2: Convert to fraction form
    256,281.09/384,202.80 = 181,164.93/x
  3. Step 3: Cross multiply
    256,281.09x = 384,202.80 × 181,164.93
  4. Step 4: Simplify right side
    256,281.09x = 69,604,073,367.80
  5. Step 5: Solve for x
    x = 69,604,073,367.80/256,281.09
  6. Step 6: Final answer
    x = 271,592.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.