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Finding the Fourth Proportional to 111,855.96, 167,783.88 and 40,783.92

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Solution

The fourth proportional to 111,855.96, 167,783.88 and 40,783.92 is: 61,175.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,855.96 : 167,783.88 = 40,783.92 : x
  2. Step 2: Convert to fraction form
    111,855.96/167,783.88 = 40,783.92/x
  3. Step 3: Cross multiply
    111,855.96x = 167,783.88 × 40,783.92
  4. Step 4: Simplify right side
    111,855.96x = 6,842,884,339.21
  5. Step 5: Solve for x
    x = 6,842,884,339.21/111,855.96
  6. Step 6: Final answer
    x = 61,175.86

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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.