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Finding the Fourth Proportional to 119,575.56, 179,388.64 and 39,609

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Solution

The fourth proportional to 119,575.56, 179,388.64 and 39,609 is: 59,421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,575.56 : 179,388.64 = 39,609 : x
  2. Step 2: Convert to fraction form
    119,575.56/179,388.64 = 39,609/x
  3. Step 3: Cross multiply
    119,575.56x = 179,388.64 × 39,609
  4. Step 4: Simplify right side
    119,575.56x = 7,105,404,641.76
  5. Step 5: Solve for x
    x = 7,105,404,641.76/119,575.56
  6. Step 6: Final answer
    x = 59,421.88

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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.