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Finding the Fourth Proportional to 253,683.64, 350,318.75 and 189,910.72

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Solution

The fourth proportional to 253,683.64, 350,318.75 and 189,910.72 is: 262,252.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,683.64 : 350,318.75 = 189,910.72 : x
  2. Step 2: Convert to fraction form
    253,683.64/350,318.75 = 189,910.72/x
  3. Step 3: Cross multiply
    253,683.64x = 350,318.75 × 189,910.72
  4. Step 4: Simplify right side
    253,683.64x = 66,529,286,042
  5. Step 5: Solve for x
    x = 66,529,286,042/253,683.64
  6. Step 6: Final answer
    x = 262,252.96

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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.