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Finding the Fourth Proportional to 358,612.50, 494,865.64 and 197,436.94

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Solution

The fourth proportional to 358,612.50, 494,865.64 and 197,436.94 is: 272,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,612.50 : 494,865.64 = 197,436.94 : x
  2. Step 2: Convert to fraction form
    358,612.50/494,865.64 = 197,436.94/x
  3. Step 3: Cross multiply
    358,612.50x = 494,865.64 × 197,436.94
  4. Step 4: Simplify right side
    358,612.50x = 97,704,757,672.74
  5. Step 5: Solve for x
    x = 97,704,757,672.74/358,612.50
  6. Step 6: Final answer
    x = 272,452.18

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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.