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Finding the Fourth Proportional to 267,075.90, 400,663.26 and 84,753

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Solution

The fourth proportional to 267,075.90, 400,663.26 and 84,753 is: 127,145.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,075.90 : 400,663.26 = 84,753 : x
  2. Step 2: Convert to fraction form
    267,075.90/400,663.26 = 84,753/x
  3. Step 3: Cross multiply
    267,075.90x = 400,663.26 × 84,753
  4. Step 4: Simplify right side
    267,075.90x = 33,957,413,274.78
  5. Step 5: Solve for x
    x = 33,957,413,274.78/267,075.90
  6. Step 6: Final answer
    x = 127,145.18

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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.