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Finding the Fourth Proportional to 192,891.52, 289,337.32 and 52,653.92

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Solution

The fourth proportional to 192,891.52, 289,337.32 and 52,653.92 is: 78,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,891.52 : 289,337.32 = 52,653.92 : x
  2. Step 2: Convert to fraction form
    192,891.52/289,337.32 = 52,653.92/x
  3. Step 3: Cross multiply
    192,891.52x = 289,337.32 × 52,653.92
  4. Step 4: Simplify right side
    192,891.52x = 15,234,744,100.29
  5. Step 5: Solve for x
    x = 15,234,744,100.29/192,891.52
  6. Step 6: Final answer
    x = 78,980.89

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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.