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Finding the Fourth Proportional to 245,279.70, 367,972.59 and 74,487.37

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Solution

The fourth proportional to 245,279.70, 367,972.59 and 74,487.37 is: 111,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,279.70 : 367,972.59 = 74,487.37 : x
  2. Step 2: Convert to fraction form
    245,279.70/367,972.59 = 74,487.37/x
  3. Step 3: Cross multiply
    245,279.70x = 367,972.59 × 74,487.37
  4. Step 4: Simplify right side
    245,279.70x = 27,409,310,461.19
  5. Step 5: Solve for x
    x = 27,409,310,461.19/245,279.70
  6. Step 6: Final answer
    x = 111,747.16

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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.