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Finding the Fourth Proportional to 133,613.48, 184,386.56 and 73,187.88

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Solution

The fourth proportional to 133,613.48, 184,386.56 and 73,187.88 is: 100,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,613.48 : 184,386.56 = 73,187.88 : x
  2. Step 2: Convert to fraction form
    133,613.48/184,386.56 = 73,187.88/x
  3. Step 3: Cross multiply
    133,613.48x = 184,386.56 × 73,187.88
  4. Step 4: Simplify right side
    133,613.48x = 13,494,861,060.95
  5. Step 5: Solve for x
    x = 13,494,861,060.95/133,613.48
  6. Step 6: Final answer
    x = 100,999.25

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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.