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Finding the Fourth Proportional to 133,615.98, 184,390 and 73,190.38

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Solution

The fourth proportional to 133,615.98, 184,390 and 73,190.38 is: 101,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,615.98 : 184,390 = 73,190.38 : x
  2. Step 2: Convert to fraction form
    133,615.98/184,390 = 73,190.38/x
  3. Step 3: Cross multiply
    133,615.98x = 184,390 × 73,190.38
  4. Step 4: Simplify right side
    133,615.98x = 13,495,574,168.20
  5. Step 5: Solve for x
    x = 13,495,574,168.20/133,615.98
  6. Step 6: Final answer
    x = 101,002.70

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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.