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Finding the Fourth Proportional to 119,448.96, 179,189.91 and 40,542

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Solution

The fourth proportional to 119,448.96, 179,189.91 and 40,542 is: 60,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,448.96 : 179,189.91 = 40,542 : x
  2. Step 2: Convert to fraction form
    119,448.96/179,189.91 = 40,542/x
  3. Step 3: Cross multiply
    119,448.96x = 179,189.91 × 40,542
  4. Step 4: Simplify right side
    119,448.96x = 7,264,717,331.22
  5. Step 5: Solve for x
    x = 7,264,717,331.22/119,448.96
  6. Step 6: Final answer
    x = 60,818.59

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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.