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Finding the Fourth Proportional to 545,049.50, 817,581.54 and 171,072.50

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Solution

The fourth proportional to 545,049.50, 817,581.54 and 171,072.50 is: 256,611.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,049.50 : 817,581.54 = 171,072.50 : x
  2. Step 2: Convert to fraction form
    545,049.50/817,581.54 = 171,072.50/x
  3. Step 3: Cross multiply
    545,049.50x = 817,581.54 × 171,072.50
  4. Step 4: Simplify right side
    545,049.50x = 139,865,718,001.65
  5. Step 5: Solve for x
    x = 139,865,718,001.65/545,049.50
  6. Step 6: Final answer
    x = 256,611.04

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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.