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Finding the Fourth Proportional to 115,781.84, 173,669.52 and 36,900.80

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Solution

The fourth proportional to 115,781.84, 173,669.52 and 36,900.80 is: 55,350.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,781.84 : 173,669.52 = 36,900.80 : x
  2. Step 2: Convert to fraction form
    115,781.84/173,669.52 = 36,900.80/x
  3. Step 3: Cross multiply
    115,781.84x = 173,669.52 × 36,900.80
  4. Step 4: Simplify right side
    115,781.84x = 6,408,544,223.62
  5. Step 5: Solve for x
    x = 6,408,544,223.62/115,781.84
  6. Step 6: Final answer
    x = 55,350.17

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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.