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Finding the Fourth Proportional to 361,986.66, 543,057.98 and 109,246.01

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Solution

The fourth proportional to 361,986.66, 543,057.98 and 109,246.01 is: 163,892.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,986.66 : 543,057.98 = 109,246.01 : x
  2. Step 2: Convert to fraction form
    361,986.66/543,057.98 = 109,246.01/x
  3. Step 3: Cross multiply
    361,986.66x = 543,057.98 × 109,246.01
  4. Step 4: Simplify right side
    361,986.66x = 59,326,914,252.14
  5. Step 5: Solve for x
    x = 59,326,914,252.14/361,986.66
  6. Step 6: Final answer
    x = 163,892.54

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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.