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Finding the Fourth Proportional to 424,463.72, 636,700.58 and 168,358.74

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Solution

The fourth proportional to 424,463.72, 636,700.58 and 168,358.74 is: 252,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,463.72 : 636,700.58 = 168,358.74 : x
  2. Step 2: Convert to fraction form
    424,463.72/636,700.58 = 168,358.74/x
  3. Step 3: Cross multiply
    424,463.72x = 636,700.58 × 168,358.74
  4. Step 4: Simplify right side
    424,463.72x = 107,194,107,406.07
  5. Step 5: Solve for x
    x = 107,194,107,406.07/424,463.72
  6. Step 6: Final answer
    x = 252,540.09

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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.