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Finding the Fourth Proportional to 362,347.85, 543,353.03 and 134,484.78

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Solution

The fourth proportional to 362,347.85, 543,353.03 and 134,484.78 is: 201,664.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,347.85 : 543,353.03 = 134,484.78 : x
  2. Step 2: Convert to fraction form
    362,347.85/543,353.03 = 134,484.78/x
  3. Step 3: Cross multiply
    362,347.85x = 543,353.03 × 134,484.78
  4. Step 4: Simplify right side
    362,347.85x = 73,072,714,571.35
  5. Step 5: Solve for x
    x = 73,072,714,571.35/362,347.85
  6. Step 6: Final answer
    x = 201,664.54

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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.