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Finding the Fourth Proportional to 536,753.80, 805,130.18 and 137,393.94

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Solution

The fourth proportional to 536,753.80, 805,130.18 and 137,393.94 is: 206,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,753.80 : 805,130.18 = 137,393.94 : x
  2. Step 2: Convert to fraction form
    536,753.80/805,130.18 = 137,393.94/x
  3. Step 3: Cross multiply
    536,753.80x = 805,130.18 × 137,393.94
  4. Step 4: Simplify right side
    536,753.80x = 110,620,007,643.11
  5. Step 5: Solve for x
    x = 110,620,007,643.11/536,753.80
  6. Step 6: Final answer
    x = 206,090.78

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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.