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Finding the Fourth Proportional to 136,312.89, 204,453.69 and 36,480.86

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Solution

The fourth proportional to 136,312.89, 204,453.69 and 36,480.86 is: 54,717.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,312.89 : 204,453.69 = 36,480.86 : x
  2. Step 2: Convert to fraction form
    136,312.89/204,453.69 = 36,480.86/x
  3. Step 3: Cross multiply
    136,312.89x = 204,453.69 × 36,480.86
  4. Step 4: Simplify right side
    136,312.89x = 7,458,646,441.37
  5. Step 5: Solve for x
    x = 7,458,646,441.37/136,312.89
  6. Step 6: Final answer
    x = 54,717.10

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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.