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Finding the Fourth Proportional to 307,330.45, 424,114.44 and 178,295.02

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Solution

The fourth proportional to 307,330.45, 424,114.44 and 178,295.02 is: 246,046.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,330.45 : 424,114.44 = 178,295.02 : x
  2. Step 2: Convert to fraction form
    307,330.45/424,114.44 = 178,295.02/x
  3. Step 3: Cross multiply
    307,330.45x = 424,114.44 × 178,295.02
  4. Step 4: Simplify right side
    307,330.45x = 75,617,492,562.09
  5. Step 5: Solve for x
    x = 75,617,492,562.09/307,330.45
  6. Step 6: Final answer
    x = 246,046.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.