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Finding the Fourth Proportional to 424,766.42, 637,128.87 and 158,506.18

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Solution

The fourth proportional to 424,766.42, 637,128.87 and 158,506.18 is: 237,751.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,766.42 : 637,128.87 = 158,506.18 : x
  2. Step 2: Convert to fraction form
    424,766.42/637,128.87 = 158,506.18/x
  3. Step 3: Cross multiply
    424,766.42x = 637,128.87 × 158,506.18
  4. Step 4: Simplify right side
    424,766.42x = 100,988,861,164.20
  5. Step 5: Solve for x
    x = 100,988,861,164.20/424,766.42
  6. Step 6: Final answer
    x = 237,751.52

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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.