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Finding the Fourth Proportional to 114,898.80, 172,348.20 and 36,012.96

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Solution

The fourth proportional to 114,898.80, 172,348.20 and 36,012.96 is: 54,019.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,898.80 : 172,348.20 = 36,012.96 : x
  2. Step 2: Convert to fraction form
    114,898.80/172,348.20 = 36,012.96/x
  3. Step 3: Cross multiply
    114,898.80x = 172,348.20 × 36,012.96
  4. Step 4: Simplify right side
    114,898.80x = 6,206,768,832.67
  5. Step 5: Solve for x
    x = 6,206,768,832.67/114,898.80
  6. Step 6: Final answer
    x = 54,019.44

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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.