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Finding the Fourth Proportional to 521,173.98, 781,619.94 and 184,169.88

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Solution

The fourth proportional to 521,173.98, 781,619.94 and 184,169.88 is: 276,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,173.98 : 781,619.94 = 184,169.88 : x
  2. Step 2: Convert to fraction form
    521,173.98/781,619.94 = 184,169.88/x
  3. Step 3: Cross multiply
    521,173.98x = 781,619.94 × 184,169.88
  4. Step 4: Simplify right side
    521,173.98x = 143,950,850,555.41
  5. Step 5: Solve for x
    x = 143,950,850,555.41/521,173.98
  6. Step 6: Final answer
    x = 276,204.98

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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.