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Finding the Fourth Proportional to 72,108.21, 108,230.19 and 36,595.05

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Solution

The fourth proportional to 72,108.21, 108,230.19 and 36,595.05 is: 54,927.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,108.21 : 108,230.19 = 36,595.05 : x
  2. Step 2: Convert to fraction form
    72,108.21/108,230.19 = 36,595.05/x
  3. Step 3: Cross multiply
    72,108.21x = 108,230.19 × 36,595.05
  4. Step 4: Simplify right side
    72,108.21x = 3,960,689,214.56
  5. Step 5: Solve for x
    x = 3,960,689,214.56/72,108.21
  6. Step 6: Final answer
    x = 54,927.02

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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.