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Finding the Fourth Proportional to 264,680.64, 397,075.76 and 87,198.56

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Solution

The fourth proportional to 264,680.64, 397,075.76 and 87,198.56 is: 130,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,680.64 : 397,075.76 = 87,198.56 : x
  2. Step 2: Convert to fraction form
    264,680.64/397,075.76 = 87,198.56/x
  3. Step 3: Cross multiply
    264,680.64x = 397,075.76 × 87,198.56
  4. Step 4: Simplify right side
    264,680.64x = 34,624,434,482.91
  5. Step 5: Solve for x
    x = 34,624,434,482.91/264,680.64
  6. Step 6: Final answer
    x = 130,815.89

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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.