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Finding the Fourth Proportional to 368,466.80, 552,991.80 and 143,934.80

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Solution

The fourth proportional to 368,466.80, 552,991.80 and 143,934.80 is: 216,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,466.80 : 552,991.80 = 143,934.80 : x
  2. Step 2: Convert to fraction form
    368,466.80/552,991.80 = 143,934.80/x
  3. Step 3: Cross multiply
    368,466.80x = 552,991.80 × 143,934.80
  4. Step 4: Simplify right side
    368,466.80x = 79,594,764,134.64
  5. Step 5: Solve for x
    x = 79,594,764,134.64/368,466.80
  6. Step 6: Final answer
    x = 216,016.11

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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.