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Finding the Fourth Proportional to 167,554.42, 251,349.95 and 72,719.42

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Solution

The fourth proportional to 167,554.42, 251,349.95 and 72,719.42 is: 109,087.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,554.42 : 251,349.95 = 72,719.42 : x
  2. Step 2: Convert to fraction form
    167,554.42/251,349.95 = 72,719.42/x
  3. Step 3: Cross multiply
    167,554.42x = 251,349.95 × 72,719.42
  4. Step 4: Simplify right side
    167,554.42x = 18,278,022,581.03
  5. Step 5: Solve for x
    x = 18,278,022,581.03/167,554.42
  6. Step 6: Final answer
    x = 109,087.08

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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.