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Finding the Fourth Proportional to 135,279.87, 202,928.72 and 35,442.51

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Solution

The fourth proportional to 135,279.87, 202,928.72 and 35,442.51 is: 53,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,279.87 : 202,928.72 = 35,442.51 : x
  2. Step 2: Convert to fraction form
    135,279.87/202,928.72 = 35,442.51/x
  3. Step 3: Cross multiply
    135,279.87x = 202,928.72 × 35,442.51
  4. Step 4: Simplify right side
    135,279.87x = 7,192,303,010.67
  5. Step 5: Solve for x
    x = 7,192,303,010.67/135,279.87
  6. Step 6: Final answer
    x = 53,166.10

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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.