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Finding the Fourth Proportional to 176,667.75, 265,059.95 and 71,429.31

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Solution

The fourth proportional to 176,667.75, 265,059.95 and 71,429.31 is: 107,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,667.75 : 265,059.95 = 71,429.31 : x
  2. Step 2: Convert to fraction form
    176,667.75/265,059.95 = 71,429.31/x
  3. Step 3: Cross multiply
    176,667.75x = 265,059.95 × 71,429.31
  4. Step 4: Simplify right side
    176,667.75x = 18,933,048,979.99
  5. Step 5: Solve for x
    x = 18,933,048,979.99/176,667.75
  6. Step 6: Final answer
    x = 107,167.54

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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.