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Finding the Fourth Proportional to 120,672.65, 181,038.24 and 36,427.79

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Solution

The fourth proportional to 120,672.65, 181,038.24 and 36,427.79 is: 54,650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,672.65 : 181,038.24 = 36,427.79 : x
  2. Step 2: Convert to fraction form
    120,672.65/181,038.24 = 36,427.79/x
  3. Step 3: Cross multiply
    120,672.65x = 181,038.24 × 36,427.79
  4. Step 4: Simplify right side
    120,672.65x = 6,594,822,083.50
  5. Step 5: Solve for x
    x = 6,594,822,083.50/120,672.65
  6. Step 6: Final answer
    x = 54,650.51

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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.