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Finding the Fourth Proportional to 172,042.94, 258,064.37 and 53,724.42

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Solution

The fourth proportional to 172,042.94, 258,064.37 and 53,724.42 is: 80,586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,042.94 : 258,064.37 = 53,724.42 : x
  2. Step 2: Convert to fraction form
    172,042.94/258,064.37 = 53,724.42/x
  3. Step 3: Cross multiply
    172,042.94x = 258,064.37 × 53,724.42
  4. Step 4: Simplify right side
    172,042.94x = 13,864,358,600.92
  5. Step 5: Solve for x
    x = 13,864,358,600.92/172,042.94
  6. Step 6: Final answer
    x = 80,586.62

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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.