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Finding the Fourth Proportional to 545,240.25, 817,992.81 and 171,263.25

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Solution

The fourth proportional to 545,240.25, 817,992.81 and 171,263.25 is: 256,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,240.25 : 817,992.81 = 171,263.25 : x
  2. Step 2: Convert to fraction form
    545,240.25/817,992.81 = 171,263.25/x
  3. Step 3: Cross multiply
    545,240.25x = 817,992.81 × 171,263.25
  4. Step 4: Simplify right side
    545,240.25x = 140,092,107,117.23
  5. Step 5: Solve for x
    x = 140,092,107,117.23/545,240.25
  6. Step 6: Final answer
    x = 256,936.47

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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.