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Finding the Fourth Proportional to 101,903.86, 152,865.51 and 39,579.22

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Solution

The fourth proportional to 101,903.86, 152,865.51 and 39,579.22 is: 59,372.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,903.86 : 152,865.51 = 39,579.22 : x
  2. Step 2: Convert to fraction form
    101,903.86/152,865.51 = 39,579.22/x
  3. Step 3: Cross multiply
    101,903.86x = 152,865.51 × 39,579.22
  4. Step 4: Simplify right side
    101,903.86x = 6,050,297,650.70
  5. Step 5: Solve for x
    x = 6,050,297,650.70/101,903.86
  6. Step 6: Final answer
    x = 59,372.61

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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.