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Finding the Fourth Proportional to 536,646.90, 804,997.92 and 137,291.12

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Solution

The fourth proportional to 536,646.90, 804,997.92 and 137,291.12 is: 205,943.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,646.90 : 804,997.92 = 137,291.12 : x
  2. Step 2: Convert to fraction form
    536,646.90/804,997.92 = 137,291.12/x
  3. Step 3: Cross multiply
    536,646.90x = 804,997.92 × 137,291.12
  4. Step 4: Simplify right side
    536,646.90x = 110,519,066,034.47
  5. Step 5: Solve for x
    x = 110,519,066,034.47/536,646.90
  6. Step 6: Final answer
    x = 205,943.73

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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.