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Finding the Fourth Proportional to 362,890.76, 544,417.74 and 122,991.03

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Solution

The fourth proportional to 362,890.76, 544,417.74 and 122,991.03 is: 184,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,890.76 : 544,417.74 = 122,991.03 : x
  2. Step 2: Convert to fraction form
    362,890.76/544,417.74 = 122,991.03/x
  3. Step 3: Cross multiply
    362,890.76x = 544,417.74 × 122,991.03
  4. Step 4: Simplify right side
    362,890.76x = 66,958,498,592.87
  5. Step 5: Solve for x
    x = 66,958,498,592.87/362,890.76
  6. Step 6: Final answer
    x = 184,514.20

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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.