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Finding the Fourth Proportional to 191,450.88, 285,729.12 and 186,474.24

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Solution

The fourth proportional to 191,450.88, 285,729.12 and 186,474.24 is: 278,301.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,450.88 : 285,729.12 = 186,474.24 : x
  2. Step 2: Convert to fraction form
    191,450.88/285,729.12 = 186,474.24/x
  3. Step 3: Cross multiply
    191,450.88x = 285,729.12 × 186,474.24
  4. Step 4: Simplify right side
    191,450.88x = 53,281,120,497.87
  5. Step 5: Solve for x
    x = 53,281,120,497.87/191,450.88
  6. Step 6: Final answer
    x = 278,301.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.