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Finding the Fourth Proportional to 403,482.66, 605,048.94 and 137,171.64

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Solution

The fourth proportional to 403,482.66, 605,048.94 and 137,171.64 is: 205,697.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,482.66 : 605,048.94 = 137,171.64 : x
  2. Step 2: Convert to fraction form
    403,482.66/605,048.94 = 137,171.64/x
  3. Step 3: Cross multiply
    403,482.66x = 605,048.94 × 137,171.64
  4. Step 4: Simplify right side
    403,482.66x = 82,995,555,380.06
  5. Step 5: Solve for x
    x = 82,995,555,380.06/403,482.66
  6. Step 6: Final answer
    x = 205,697.95

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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.