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Finding the Fourth Proportional to 424,461.72, 636,697.58 and 168,356.74

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Solution

The fourth proportional to 424,461.72, 636,697.58 and 168,356.74 is: 252,537.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,461.72 : 636,697.58 = 168,356.74 : x
  2. Step 2: Convert to fraction form
    424,461.72/636,697.58 = 168,356.74/x
  3. Step 3: Cross multiply
    424,461.72x = 636,697.58 × 168,356.74
  4. Step 4: Simplify right side
    424,461.72x = 107,192,328,934.69
  5. Step 5: Solve for x
    x = 107,192,328,934.69/424,461.72
  6. Step 6: Final answer
    x = 252,537.09

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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.