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Finding the Fourth Proportional to 134,661.49, 185,832.79 and 74,233.12

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Solution

The fourth proportional to 134,661.49, 185,832.79 and 74,233.12 is: 102,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,661.49 : 185,832.79 = 74,233.12 : x
  2. Step 2: Convert to fraction form
    134,661.49/185,832.79 = 74,233.12/x
  3. Step 3: Cross multiply
    134,661.49x = 185,832.79 × 74,233.12
  4. Step 4: Simplify right side
    134,661.49x = 13,794,947,800.00
  5. Step 5: Solve for x
    x = 13,794,947,800.00/134,661.49
  6. Step 6: Final answer
    x = 102,441.67

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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.