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Finding the Fourth Proportional to 299,744.64, 449,075.52 and 187,371.36

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Solution

The fourth proportional to 299,744.64, 449,075.52 and 187,371.36 is: 280,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,744.64 : 449,075.52 = 187,371.36 : x
  2. Step 2: Convert to fraction form
    299,744.64/449,075.52 = 187,371.36/x
  3. Step 3: Cross multiply
    299,744.64x = 449,075.52 × 187,371.36
  4. Step 4: Simplify right side
    299,744.64x = 84,143,890,925.11
  5. Step 5: Solve for x
    x = 84,143,890,925.11/299,744.64
  6. Step 6: Final answer
    x = 280,718.58

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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.