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Finding the Fourth Proportional to 281,171.52, 388,016.46 and 153,847.64

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Solution

The fourth proportional to 281,171.52, 388,016.46 and 153,847.64 is: 212,309.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,171.52 : 388,016.46 = 153,847.64 : x
  2. Step 2: Convert to fraction form
    281,171.52/388,016.46 = 153,847.64/x
  3. Step 3: Cross multiply
    281,171.52x = 388,016.46 × 153,847.64
  4. Step 4: Simplify right side
    281,171.52x = 59,695,416,652.15
  5. Step 5: Solve for x
    x = 59,695,416,652.15/281,171.52
  6. Step 6: Final answer
    x = 212,309.61

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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.