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Finding the Fourth Proportional to 115,780.67, 173,669.10 and 36,893.82

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Solution

The fourth proportional to 115,780.67, 173,669.10 and 36,893.82 is: 55,340.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,780.67 : 173,669.10 = 36,893.82 : x
  2. Step 2: Convert to fraction form
    115,780.67/173,669.10 = 36,893.82/x
  3. Step 3: Cross multiply
    115,780.67x = 173,669.10 × 36,893.82
  4. Step 4: Simplify right side
    115,780.67x = 6,407,316,514.96
  5. Step 5: Solve for x
    x = 6,407,316,514.96/115,780.67
  6. Step 6: Final answer
    x = 55,340.12

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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.