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Finding the Fourth Proportional to 307,604.04, 424,503.75 and 178,532.83

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Solution

The fourth proportional to 307,604.04, 424,503.75 and 178,532.83 is: 246,381.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,604.04 : 424,503.75 = 178,532.83 : x
  2. Step 2: Convert to fraction form
    307,604.04/424,503.75 = 178,532.83/x
  3. Step 3: Cross multiply
    307,604.04x = 424,503.75 × 178,532.83
  4. Step 4: Simplify right side
    307,604.04x = 75,787,855,833.11
  5. Step 5: Solve for x
    x = 75,787,855,833.11/307,604.04
  6. Step 6: Final answer
    x = 246,381.21

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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.