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Finding the Fourth Proportional to 403,844.63, 605,650.29 and 137,599.25

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Solution

The fourth proportional to 403,844.63, 605,650.29 and 137,599.25 is: 206,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,844.63 : 605,650.29 = 137,599.25 : x
  2. Step 2: Convert to fraction form
    403,844.63/605,650.29 = 137,599.25/x
  3. Step 3: Cross multiply
    403,844.63x = 605,650.29 × 137,599.25
  4. Step 4: Simplify right side
    403,844.63x = 83,337,025,666.28
  5. Step 5: Solve for x
    x = 83,337,025,666.28/403,844.63
  6. Step 6: Final answer
    x = 206,359.13

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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.