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Finding the Fourth Proportional to 114,920.80, 172,408.80 and 36,035.04

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Solution

The fourth proportional to 114,920.80, 172,408.80 and 36,035.04 is: 54,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,920.80 : 172,408.80 = 36,035.04 : x
  2. Step 2: Convert to fraction form
    114,920.80/172,408.80 = 36,035.04/x
  3. Step 3: Cross multiply
    114,920.80x = 172,408.80 × 36,035.04
  4. Step 4: Simplify right side
    114,920.80x = 6,212,758,004.35
  5. Step 5: Solve for x
    x = 6,212,758,004.35/114,920.80
  6. Step 6: Final answer
    x = 54,061.21

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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.