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Finding the Fourth Proportional to 177,179.16, 265,865.94 and 71,969.88

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Solution

The fourth proportional to 177,179.16, 265,865.94 and 71,969.88 is: 107,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,179.16 : 265,865.94 = 71,969.88 : x
  2. Step 2: Convert to fraction form
    177,179.16/265,865.94 = 71,969.88/x
  3. Step 3: Cross multiply
    177,179.16x = 265,865.94 × 71,969.88
  4. Step 4: Simplify right side
    177,179.16x = 19,134,339,797.89
  5. Step 5: Solve for x
    x = 19,134,339,797.89/177,179.16
  6. Step 6: Final answer
    x = 107,994.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.