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Finding the Fourth Proportional to 189,638.73, 284,362.86 and 63,234.23

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Solution

The fourth proportional to 189,638.73, 284,362.86 and 63,234.23 is: 94,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,638.73 : 284,362.86 = 63,234.23 : x
  2. Step 2: Convert to fraction form
    189,638.73/284,362.86 = 63,234.23/x
  3. Step 3: Cross multiply
    189,638.73x = 284,362.86 × 63,234.23
  4. Step 4: Simplify right side
    189,638.73x = 17,981,465,070.88
  5. Step 5: Solve for x
    x = 17,981,465,070.88/189,638.73
  6. Step 6: Final answer
    x = 94,819.58

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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.