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Finding the Fourth Proportional to 424,099.53, 636,148.89 and 108,555.93

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Solution

The fourth proportional to 424,099.53, 636,148.89 and 108,555.93 is: 162,833.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,099.53 : 636,148.89 = 108,555.93 : x
  2. Step 2: Convert to fraction form
    424,099.53/636,148.89 = 108,555.93/x
  3. Step 3: Cross multiply
    424,099.53x = 636,148.89 × 108,555.93
  4. Step 4: Simplify right side
    424,099.53x = 69,057,734,372.42
  5. Step 5: Solve for x
    x = 69,057,734,372.42/424,099.53
  6. Step 6: Final answer
    x = 162,833.79

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1.5x scale

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.