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Finding the Fourth Proportional to 170,934.93, 256,324.43 and 71,035.61

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Solution

The fourth proportional to 170,934.93, 256,324.43 and 71,035.61 is: 106,521.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,934.93 : 256,324.43 = 71,035.61 : x
  2. Step 2: Convert to fraction form
    170,934.93/256,324.43 = 71,035.61/x
  3. Step 3: Cross multiply
    170,934.93x = 256,324.43 × 71,035.61
  4. Step 4: Simplify right side
    170,934.93x = 18,208,161,138.92
  5. Step 5: Solve for x
    x = 18,208,161,138.92/170,934.93
  6. Step 6: Final answer
    x = 106,521.01

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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.