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Finding the Fourth Proportional to 267,513.20, 401,075.40 and 109,660.40

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Solution

The fourth proportional to 267,513.20, 401,075.40 and 109,660.40 is: 164,410.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,513.20 : 401,075.40 = 109,660.40 : x
  2. Step 2: Convert to fraction form
    267,513.20/401,075.40 = 109,660.40/x
  3. Step 3: Cross multiply
    267,513.20x = 401,075.40 × 109,660.40
  4. Step 4: Simplify right side
    267,513.20x = 43,982,088,794.16
  5. Step 5: Solve for x
    x = 43,982,088,794.16/267,513.20
  6. Step 6: Final answer
    x = 164,410.91

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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.