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Finding the Fourth Proportional to 536,266.36, 804,399 and 136,907.20

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Solution

The fourth proportional to 536,266.36, 804,399 and 136,907.20 is: 205,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,266.36 : 804,399 = 136,907.20 : x
  2. Step 2: Convert to fraction form
    536,266.36/804,399 = 136,907.20/x
  3. Step 3: Cross multiply
    536,266.36x = 804,399 × 136,907.20
  4. Step 4: Simplify right side
    536,266.36x = 110,128,014,772.80
  5. Step 5: Solve for x
    x = 110,128,014,772.80/536,266.36
  6. Step 6: Final answer
    x = 205,360.66

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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.