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Finding the Fourth Proportional to 545,053.98, 817,588.26 and 171,076.98

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Solution

The fourth proportional to 545,053.98, 817,588.26 and 171,076.98 is: 256,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,053.98 : 817,588.26 = 171,076.98 : x
  2. Step 2: Convert to fraction form
    545,053.98/817,588.26 = 171,076.98/x
  3. Step 3: Cross multiply
    545,053.98x = 817,588.26 × 171,076.98
  4. Step 4: Simplify right side
    545,053.98x = 139,870,530,404.26
  5. Step 5: Solve for x
    x = 139,870,530,404.26/545,053.98
  6. Step 6: Final answer
    x = 256,617.76

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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.