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Finding the Fourth Proportional to 167,405.44, 251,043.88 and 71,281.74

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Solution

The fourth proportional to 167,405.44, 251,043.88 and 71,281.74 is: 106,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,405.44 : 251,043.88 = 71,281.74 : x
  2. Step 2: Convert to fraction form
    167,405.44/251,043.88 = 71,281.74/x
  3. Step 3: Cross multiply
    167,405.44x = 251,043.88 × 71,281.74
  4. Step 4: Simplify right side
    167,405.44x = 17,894,844,582.75
  5. Step 5: Solve for x
    x = 17,894,844,582.75/167,405.44
  6. Step 6: Final answer
    x = 106,895.24

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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.