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Finding the Fourth Proportional to 133,605.78, 184,610.52 and 105,151.56

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Solution

The fourth proportional to 133,605.78, 184,610.52 and 105,151.56 is: 145,293.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,605.78 : 184,610.52 = 105,151.56 : x
  2. Step 2: Convert to fraction form
    133,605.78/184,610.52 = 105,151.56/x
  3. Step 3: Cross multiply
    133,605.78x = 184,610.52 × 105,151.56
  4. Step 4: Simplify right side
    133,605.78x = 19,412,084,170.41
  5. Step 5: Solve for x
    x = 19,412,084,170.41/133,605.78
  6. Step 6: Final answer
    x = 145,293.75

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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.