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Finding the Fourth Proportional to 119,420.80, 179,108.91 and 48,324.82

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Solution

The fourth proportional to 119,420.80, 179,108.91 and 48,324.82 is: 72,478.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,420.80 : 179,108.91 = 48,324.82 : x
  2. Step 2: Convert to fraction form
    119,420.80/179,108.91 = 48,324.82/x
  3. Step 3: Cross multiply
    119,420.80x = 179,108.91 × 48,324.82
  4. Step 4: Simplify right side
    119,420.80x = 8,655,405,836.15
  5. Step 5: Solve for x
    x = 8,655,405,836.15/119,420.80
  6. Step 6: Final answer
    x = 72,478.21

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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.