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Finding the Fourth Proportional to 167,855.40, 252,074.70 and 89,123.40

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Solution

The fourth proportional to 167,855.40, 252,074.70 and 89,123.40 is: 133,839.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,855.40 : 252,074.70 = 89,123.40 : x
  2. Step 2: Convert to fraction form
    167,855.40/252,074.70 = 89,123.40/x
  3. Step 3: Cross multiply
    167,855.40x = 252,074.70 × 89,123.40
  4. Step 4: Simplify right side
    167,855.40x = 22,465,754,317.98
  5. Step 5: Solve for x
    x = 22,465,754,317.98/167,855.40
  6. Step 6: Final answer
    x = 133,839.93

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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.