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Finding the Fourth Proportional to 133,160.31, 183,765.60 and 72,734.52

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Solution

The fourth proportional to 133,160.31, 183,765.60 and 72,734.52 is: 100,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,160.31 : 183,765.60 = 72,734.52 : x
  2. Step 2: Convert to fraction form
    133,160.31/183,765.60 = 72,734.52/x
  3. Step 3: Cross multiply
    133,160.31x = 183,765.60 × 72,734.52
  4. Step 4: Simplify right side
    133,160.31x = 13,366,102,708.51
  5. Step 5: Solve for x
    x = 13,366,102,708.51/133,160.31
  6. Step 6: Final answer
    x = 100,376.03

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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.