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Finding the Fourth Proportional to 424,880.58, 637,172.37 and 125,281.62

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Solution

The fourth proportional to 424,880.58, 637,172.37 and 125,281.62 is: 187,878.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,880.58 : 637,172.37 = 125,281.62 : x
  2. Step 2: Convert to fraction form
    424,880.58/637,172.37 = 125,281.62/x
  3. Step 3: Cross multiply
    424,880.58x = 637,172.37 × 125,281.62
  4. Step 4: Simplify right side
    424,880.58x = 79,825,986,732.84
  5. Step 5: Solve for x
    x = 79,825,986,732.84/424,880.58
  6. Step 6: Final answer
    x = 187,878.64

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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.