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Finding the Fourth Proportional to 262,482.62, 393,786.64 and 84,989.82

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Solution

The fourth proportional to 262,482.62, 393,786.64 and 84,989.82 is: 127,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,482.62 : 393,786.64 = 84,989.82 : x
  2. Step 2: Convert to fraction form
    262,482.62/393,786.64 = 84,989.82/x
  3. Step 3: Cross multiply
    262,482.62x = 393,786.64 × 84,989.82
  4. Step 4: Simplify right side
    262,482.62x = 33,467,855,652.00
  5. Step 5: Solve for x
    x = 33,467,855,652.00/262,482.62
  6. Step 6: Final answer
    x = 127,505.04

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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.