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Finding the Fourth Proportional to 133,363.79, 184,108.96 and 103,080.68

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Solution

The fourth proportional to 133,363.79, 184,108.96 and 103,080.68 is: 142,303.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,363.79 : 184,108.96 = 103,080.68 : x
  2. Step 2: Convert to fraction form
    133,363.79/184,108.96 = 103,080.68/x
  3. Step 3: Cross multiply
    133,363.79x = 184,108.96 × 103,080.68
  4. Step 4: Simplify right side
    133,363.79x = 18,978,076,399.69
  5. Step 5: Solve for x
    x = 18,978,076,399.69/133,363.79
  6. Step 6: Final answer
    x = 142,303.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.