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Finding the Fourth Proportional to 120,131, 180,196.52 and 37,025

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Solution

The fourth proportional to 120,131, 180,196.52 and 37,025 is: 55,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,131 : 180,196.52 = 37,025 : x
  2. Step 2: Convert to fraction form
    120,131/180,196.52 = 37,025/x
  3. Step 3: Cross multiply
    120,131x = 180,196.52 × 37,025
  4. Step 4: Simplify right side
    120,131x = 6,671,776,153
  5. Step 5: Solve for x
    x = 6,671,776,153/120,131
  6. Step 6: Final answer
    x = 55,537.51

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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.