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Finding the Fourth Proportional to 133,638.54, 184,420.64 and 73,209.11

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Solution

The fourth proportional to 133,638.54, 184,420.64 and 73,209.11 is: 101,028.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,638.54 : 184,420.64 = 73,209.11 : x
  2. Step 2: Convert to fraction form
    133,638.54/184,420.64 = 73,209.11/x
  3. Step 3: Cross multiply
    133,638.54x = 184,420.64 × 73,209.11
  4. Step 4: Simplify right side
    133,638.54x = 13,501,269,631.88
  5. Step 5: Solve for x
    x = 13,501,269,631.88/133,638.54
  6. Step 6: Final answer
    x = 101,028.26

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1.5x scale

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.