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Finding the Fourth Proportional to 103,676.90, 155,552.84 and 36,218.94

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Solution

The fourth proportional to 103,676.90, 155,552.84 and 36,218.94 is: 54,341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676.90 : 155,552.84 = 36,218.94 : x
  2. Step 2: Convert to fraction form
    103,676.90/155,552.84 = 36,218.94/x
  3. Step 3: Cross multiply
    103,676.90x = 155,552.84 × 36,218.94
  4. Step 4: Simplify right side
    103,676.90x = 5,633,958,978.79
  5. Step 5: Solve for x
    x = 5,633,958,978.79/103,676.90
  6. Step 6: Final answer
    x = 54,341.51

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1.5x scale

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.