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Finding the Fourth Proportional to 536,754.30, 805,130.91 and 137,394.42

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Solution

The fourth proportional to 536,754.30, 805,130.91 and 137,394.42 is: 206,091.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,754.30 : 805,130.91 = 137,394.42 : x
  2. Step 2: Convert to fraction form
    536,754.30/805,130.91 = 137,394.42/x
  3. Step 3: Cross multiply
    536,754.30x = 805,130.91 × 137,394.42
  4. Step 4: Simplify right side
    536,754.30x = 110,620,494,403.52
  5. Step 5: Solve for x
    x = 110,620,494,403.52/536,754.30
  6. Step 6: Final answer
    x = 206,091.49

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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.