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Finding the Fourth Proportional to 111,854.44, 167,781.61 and 40,782.40

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Solution

The fourth proportional to 111,854.44, 167,781.61 and 40,782.40 is: 61,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,854.44 : 167,781.61 = 40,782.40 : x
  2. Step 2: Convert to fraction form
    111,854.44/167,781.61 = 40,782.40/x
  3. Step 3: Cross multiply
    111,854.44x = 167,781.61 × 40,782.40
  4. Step 4: Simplify right side
    111,854.44x = 6,842,536,731.66
  5. Step 5: Solve for x
    x = 6,842,536,731.66/111,854.44
  6. Step 6: Final answer
    x = 61,173.58

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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.