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Finding the Fourth Proportional to 176,639.68, 264,959.70 and 71,459.56

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Solution

The fourth proportional to 176,639.68, 264,959.70 and 71,459.56 is: 107,189.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,639.68 : 264,959.70 = 71,459.56 : x
  2. Step 2: Convert to fraction form
    176,639.68/264,959.70 = 71,459.56/x
  3. Step 3: Cross multiply
    176,639.68x = 264,959.70 × 71,459.56
  4. Step 4: Simplify right side
    176,639.68x = 18,933,903,579.73
  5. Step 5: Solve for x
    x = 18,933,903,579.73/176,639.68
  6. Step 6: Final answer
    x = 107,189.41

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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.