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Finding the Fourth Proportional to 403,916.30, 605,874.45 and 119,617.10

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Solution

The fourth proportional to 403,916.30, 605,874.45 and 119,617.10 is: 179,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,916.30 : 605,874.45 = 119,617.10 : x
  2. Step 2: Convert to fraction form
    403,916.30/605,874.45 = 119,617.10/x
  3. Step 3: Cross multiply
    403,916.30x = 605,874.45 × 119,617.10
  4. Step 4: Simplify right side
    403,916.30x = 72,472,944,673.10
  5. Step 5: Solve for x
    x = 72,472,944,673.10/403,916.30
  6. Step 6: Final answer
    x = 179,425.65

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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.