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Finding the Fourth Proportional to 111,312.88, 166,962.84 and 36,481.84

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Solution

The fourth proportional to 111,312.88, 166,962.84 and 36,481.84 is: 54,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,312.88 : 166,962.84 = 36,481.84 : x
  2. Step 2: Convert to fraction form
    111,312.88/166,962.84 = 36,481.84/x
  3. Step 3: Cross multiply
    111,312.88x = 166,962.84 × 36,481.84
  4. Step 4: Simplify right side
    111,312.88x = 6,091,111,614.83
  5. Step 5: Solve for x
    x = 6,091,111,614.83/111,312.88
  6. Step 6: Final answer
    x = 54,720.64

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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.