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Finding the Fourth Proportional to 403,867.72, 605,873.61 and 134,012.07

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Solution

The fourth proportional to 403,867.72, 605,873.61 and 134,012.07 is: 201,042.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,867.72 : 605,873.61 = 134,012.07 : x
  2. Step 2: Convert to fraction form
    403,867.72/605,873.61 = 134,012.07/x
  3. Step 3: Cross multiply
    403,867.72x = 605,873.61 × 134,012.07
  4. Step 4: Simplify right side
    403,867.72x = 81,194,373,605.10
  5. Step 5: Solve for x
    x = 81,194,373,605.10/403,867.72
  6. Step 6: Final answer
    x = 201,042.00

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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.