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Finding the Fourth Proportional to 371,392.90, 557,126.25 and 134,754.03

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Solution

The fourth proportional to 371,392.90, 557,126.25 and 134,754.03 is: 202,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,392.90 : 557,126.25 = 134,754.03 : x
  2. Step 2: Convert to fraction form
    371,392.90/557,126.25 = 134,754.03/x
  3. Step 3: Cross multiply
    371,392.90x = 557,126.25 × 134,754.03
  4. Step 4: Simplify right side
    371,392.90x = 75,075,007,406.29
  5. Step 5: Solve for x
    x = 75,075,007,406.29/371,392.90
  6. Step 6: Final answer
    x = 202,144.43

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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.