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Finding the Fourth Proportional to 494,552.70, 741,950.55 and 139,562.10

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Solution

The fourth proportional to 494,552.70, 741,950.55 and 139,562.10 is: 209,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,552.70 : 741,950.55 = 139,562.10 : x
  2. Step 2: Convert to fraction form
    494,552.70/741,950.55 = 139,562.10/x
  3. Step 3: Cross multiply
    494,552.70x = 741,950.55 × 139,562.10
  4. Step 4: Simplify right side
    494,552.70x = 103,548,176,854.16
  5. Step 5: Solve for x
    x = 103,548,176,854.16/494,552.70
  6. Step 6: Final answer
    x = 209,377.44

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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.